{"id":36697,"date":"2019-03-21T06:57:39","date_gmt":"2019-03-21T11:57:39","guid":{"rendered":"https:\/\/www.mamanatural.com\/?page_id=36697"},"modified":"2020-06-10T10:18:18","modified_gmt":"2020-06-10T15:18:18","slug":"due-date-calculator","status":"publish","type":"page","link":"https:\/\/www.mamanatural.com\/due-date-calculator\/","title":{"rendered":"Due Date Calculator"},"content":{"rendered":"        <div class=\"due-date-calculator panel panel-default\">\r\n\r\n          <div class=\"panel-body\">\r\n\r\n\r\n            <div class=\"due-date-calc-inputs\">\r\n\r\n\r\n              <form class=\"row\">\r\n\r\n\r\n                <div class=\"col-xs-12 col-sm-6 col-md-7 col-lg-7\">\r\n\r\n                  <h4>First day of your <strong>last period:<\/strong><\/h4>\r\n                    <p class=\"hidden-xs hidden-ms no-bottom small form-inline\">\r\n                       Please choose the day your most recent period started.                    <\/p>\r\n                    <div class=\"spacer10 visible-xs visible-ms\"><\/div>\r\n\r\n                <\/div>\r\n\r\n                <div class=\"col-xs-12 col-ms-12 col-sm-6 col-md-5 col-lg-5 clearfix\">\r\n\r\n                  <div class=\"clearfix picker-w-button\">\r\n\r\n\r\n                        \r\n        <div class=\"datepicker-wrap datepicker-wrap-period\" style=\"display:none;\" id=\"datepicker-wrap-period-1388650\">\r\n          <input type=\"hidden\" id=\"datepicker-iso-period-1388650\" name=\"date\" value=\"2025-12-08\" \/>\r\n          <input type=\"text\" class=\"datepicker\"  id=\"datepicker-period-1388650\" \/>\r\n          <span id=\"datepicker-friendly-period-1388650\">December 8, 2025<\/span>\r\n        <\/div>\r\n\r\n        <script>\r\n          !function ($) {\r\n\r\n              $('#datepicker-wrap-period-1388650').fadeIn('fast');\r\n\r\n            $(function(){\r\n\r\n\r\n              var defaultDateValue=new Date('2025-12-08');\r\n\r\n              $('#datepicker-wrap-period-1388650').find('#datepicker-period-1388650').datepicker({\r\n                firstDay: 0,\r\n                dateFormat: 'MM d, yy',\r\n                defaultDate : defaultDateValue,\r\n                altField:'#datepicker-iso-period-1388650',\r\n                altFormat:'yy-mm-dd',\r\n                onSelect:window.datepicker_select,\r\n                minDate: new Date('2025-04-07'),\r\n                \/\/maxDate: new Date('2026-01-12'),\r\n                }\r\n               );\r\n\r\n            })\r\n          }(window.jQuery)\r\n\r\n        <\/script>\r\n\r\n        \r\n                        <input type=\"hidden\" name=\"mode\" value=\"period\" \/>\r\n                        <button class=\"btn btn-block btn-sm btn-primary\" type=\"submit\"><i class=\"fa fa-chevron-circle-right\"><\/i><\/button>\r\n\r\n                    <\/div>\r\n\r\n                  <div class=\"spacer10\"><\/div>\r\n\r\n                  <p class=\"no-bottom small\">\r\n\r\n                   Average cycle:\r\n                   <select class=\"form-control cycle-dropdown\" name=\"cycle\">          <option value=\"20\" >20 days<\/option>\r\n                              <option value=\"21\" >21 days<\/option>\r\n                              <option value=\"22\" >22 days<\/option>\r\n                              <option value=\"23\" >23 days<\/option>\r\n                              <option value=\"24\" >24 days<\/option>\r\n                              <option value=\"25\" >25 days<\/option>\r\n                              <option value=\"26\" >26 days<\/option>\r\n                              <option value=\"27\" >27 days<\/option>\r\n                              <option value=\"28\"  selected='selected'>28 days<\/option>\r\n                              <option value=\"29\" >29 days<\/option>\r\n                              <option value=\"30\" >30 days<\/option>\r\n                              <option value=\"31\" >31 days<\/option>\r\n                              <option value=\"32\" >32 days<\/option>\r\n                              <option value=\"33\" >33 days<\/option>\r\n                              <option value=\"34\" >34 days<\/option>\r\n                              <option value=\"35\" >35 days<\/option>\r\n                              <option value=\"36\" >36 days<\/option>\r\n                              <option value=\"37\" >37 days<\/option>\r\n                              <option value=\"38\" >38 days<\/option>\r\n                              <option value=\"39\" >39 days<\/option>\r\n                              <option value=\"40\" >40 days<\/option>\r\n                              <option value=\"41\" >41 days<\/option>\r\n                              <option value=\"42\" >42 days<\/option>\r\n                              <option value=\"43\" >43 days<\/option>\r\n                              <option value=\"44\" >44 days<\/option>\r\n                              <option value=\"45\" >45 days<\/option>\r\n                    <\/select>\r\n\r\n                  <\/p>\r\n\r\n                <\/div>\r\n\r\n              <\/form><!-- \/.row -->\r\n\r\n\r\n\r\n              <div class=\"or\"><span>or<\/span><\/div>\r\n\r\n\r\n\r\n\r\n              <form class=\"row\">\r\n\r\n\r\n                <div class=\"col-xs-12 col-sm-6 col-md-7 col-lg-7\">\r\n\r\n                  <h4>Date you <strong>conceived:<\/strong><\/h4>\r\n                    <p class=\"hidden-xs hidden-ms no-bottom small form-inline\">\r\n                       Conception is approximately two days after intercourse.                    <\/p>\r\n                    <div class=\"spacer10 visible-xs visible-ms\"><\/div>\r\n\r\n                <\/div>\r\n\r\n                <div class=\"col-xs-12 col-sm-6 col-md-5 col-lg-5 clearfix\">\r\n\r\n                    <div class=\"clearfix picker-w-button\">\r\n\r\n\r\n                        \r\n        <div class=\"datepicker-wrap datepicker-wrap-conception\" style=\"display:none;\" id=\"datepicker-wrap-conception-4791898\">\r\n          <input type=\"hidden\" id=\"datepicker-iso-conception-4791898\" name=\"date\" value=\"2025-12-08\" \/>\r\n          <input type=\"text\" class=\"datepicker\"  id=\"datepicker-conception-4791898\" \/>\r\n          <span id=\"datepicker-friendly-conception-4791898\">December 8, 2025<\/span>\r\n        <\/div>\r\n\r\n        <script>\r\n          !function ($) {\r\n\r\n              $('#datepicker-wrap-conception-4791898').fadeIn('fast');\r\n\r\n            $(function(){\r\n\r\n\r\n              var defaultDateValue=new Date('2025-12-08');\r\n\r\n              $('#datepicker-wrap-conception-4791898').find('#datepicker-conception-4791898').datepicker({\r\n                firstDay: 0,\r\n                dateFormat: 'MM d, yy',\r\n                defaultDate : defaultDateValue,\r\n                altField:'#datepicker-iso-conception-4791898',\r\n                altFormat:'yy-mm-dd',\r\n                onSelect:window.datepicker_select,\r\n                minDate: new Date('2025-04-07'),\r\n                \/\/maxDate: new Date('2026-01-12'),\r\n                }\r\n               );\r\n\r\n            })\r\n          }(window.jQuery)\r\n\r\n        <\/script>\r\n\r\n        \r\n                        <input type=\"hidden\" name=\"mode\" value=\"conception\" \/>\r\n                        <button class=\"btn btn-block btn-sm btn-primary\" type=\"submit\"><i class=\"fa fa-chevron-circle-right\"><\/i><\/button>\r\n\r\n                    <\/div>\r\n\r\n\r\n\r\n\r\n                <\/div>\r\n\r\n              <\/form><!-- \/.row -->\r\n\r\n\r\n\r\n\r\n\r\n\r\n            <\/div><!-- .due-date-calc-inputs -->\r\n\r\n          <\/div><!-- \/.panel-body -->\r\n          <div class=\"panel-footer \">\r\n\r\n                <div class=\"row\">\r\n\r\n                  <div class=\"col-xs-12 col-ms-10 col-ms-push-1 col-sm-7 col-md-7 col-lg-7\">\r\n                     <h6 class=\"no-bottom\" style=\"margin-top:3px;\">Want a <strong>more accurate<\/strong> calculation? <\/h6>\r\n                    <div class=\"spacer10 visible-xs visible-ms\"><\/div>\r\n                  <\/div>\r\n\r\n                  <div class=\"col-xs-12 col-ms-10 col-ms-push-1 col-sm-5 clearfix\">\r\n\r\n                      <input type=\"hidden\" name=\"mode\" value=\"conception\" \/>\r\n                      <a href=\"\/due-date-calculator\/advanced-due-date\" class=\"btn  btn-sm btn-primary\">Try our Advanced Calculator <i class=\"fa fa-fw fa-chevron-circle-right\"><\/i><\/a>\r\n\r\n                  <\/div>\r\n                <\/div>\r\n\r\n              <\/form><!-- \/.row -->\r\n\r\n          <\/div>\r\n\r\n\r\n        <\/div><!-- \/.panel -->\r\n\r\n        <p class=\"small text-muted text-center\">\r\n\r\n            Already know your due date? <a href=\"\/pregnancy-calendar\/\">Click here<\/a>\r\n        <\/p>\r\n        \n<span class=\"media-wrap image-wrap img-24063 \"> <span class=\"thumbnail\" style=\"border:none; ;\"> <span class=\"lazy-image-wrap\" data-loader=\"loadLazyElement\" data-embedhtml=\"&lt;img width=&quot;750&quot; height=&quot;156&quot; src=&quot;https:\/\/www.mamanatural.com\/wp-content\/uploads\/Pregnancy-wk2wk-universal-header2-scaled.jpg&quot; class=&quot;img-responsive &quot; alt=&quot;Pregnancy week by week wk2wk universal header&quot; style=&quot;border:none;&quot; \/&gt;\"><span class=\"sr-only\">Pregnancy Week by Week Universal Header<\/span><span class=\"lazy-placeholder-wrap\" style=\"\"><span class=\"lazy-placeholder\" style=\" padding-bottom: 20.8594%;background: url(https:\/\/www.mamanatural.com\/wp-content\/uploads\/Mama-Natural-Logo-Grayscale-250x141.png) no-repeat center center;background-size: contain;\"><\/span><\/span><\/span> <\/span> <\/span>\n    <style>\r\n              .scroll-to-links ul {\r\n          margin:0 0 0 2em!important;\r\n          padding:0 0 0 10px;\r\n          list-style-type:none;\r\n        }\r\n            \r\n    <\/style>\r\n    <div class=\"scroll-to-links ggnoads\">\r\n      \r\n              <h5>On this page&hellip;<\/h5>\r\n            <ul  class=\"fa-ul ggnoads\">\r\n                  <li><span class=\"fa-li\"><i class=\"fa fa-chevron-circle-down\"><\/i><\/span>\r\n      <a href=\"#pregnancy-due-date-calculator-video\" class=\"mn-jump-anchor scroll-to-hash\">\r\n          <p>Pregnancy due date calculator video<\/p>\n      <\/a>\r\n\r\n      <\/li>\r\n                  <li><span class=\"fa-li\"><i class=\"fa fa-chevron-circle-down\"><\/i><\/span>\r\n      <a href=\"#how-does-this-due-date-calculator-work\" class=\"mn-jump-anchor scroll-to-hash\">\r\n          <p>How does this due date calculator work?<\/p>\n      <\/a>\r\n\r\n      <\/li>\r\n                  <li><span class=\"fa-li\"><i class=\"fa fa-chevron-circle-down\"><\/i><\/span>\r\n      <a href=\"#28days\" class=\"mn-jump-anchor scroll-to-hash\">\r\n          <p>My cycle isn&#8217;t 28 days. Will this still work?<\/p>\n      <\/a>\r\n\r\n      <\/li>\r\n                  <li><span class=\"fa-li\"><i class=\"fa fa-chevron-circle-down\"><\/i><\/span>\r\n      <a href=\"#how-do-you-calculate-due-date-from-conception\" class=\"mn-jump-anchor scroll-to-hash\">\r\n          <p>How do you calculate due date from conception?<\/p>\n      <\/a>\r\n\r\n      <\/li>\r\n                  <li><span class=\"fa-li\"><i class=\"fa fa-chevron-circle-down\"><\/i><\/span>\r\n      <a href=\"#what-exactly-is-the-date-of-conception\" class=\"mn-jump-anchor scroll-to-hash\">\r\n          <p>What exactly <em>is<\/em> the date of conception?<\/p>\n      <\/a>\r\n\r\n      <\/li>\r\n                  <li><span class=\"fa-li\"><i class=\"fa fa-chevron-circle-down\"><\/i><\/span>\r\n      <a href=\"#what-is-an-estimated-due-date-edd\" class=\"mn-jump-anchor scroll-to-hash\">\r\n          <p>What is an estimated due date (EDD)?<\/p>\n      <\/a>\r\n\r\n      <\/li>\r\n                  <li><span class=\"fa-li\"><i class=\"fa fa-chevron-circle-down\"><\/i><\/span>\r\n      <a href=\"#GA\" class=\"mn-jump-anchor scroll-to-hash\">\r\n          <p>What is \u201cgestational age?\u201d<\/p>\n      <\/a>\r\n\r\n      <\/li>\r\n                  <li><span class=\"fa-li\"><i class=\"fa fa-chevron-circle-down\"><\/i><\/span>\r\n      <a href=\"#how-are-the-weeks-of-pregnancy-calculated\" class=\"mn-jump-anchor scroll-to-hash\">\r\n          <p>How are the weeks of pregnancy calculated?<\/p>\n      <\/a>\r\n\r\n      <\/li>\r\n                  <li><span class=\"fa-li\"><i class=\"fa fa-chevron-circle-down\"><\/i><\/span>\r\n      <a href=\"#what-is-naegeles-rule-for-due-date-calculation\" class=\"mn-jump-anchor scroll-to-hash\">\r\n          <p>What is Naegele&#8217;s rule for due date calculation?<\/p>\n      <\/a>\r\n\r\n      <\/li>\r\n                  <li><span class=\"fa-li\"><i class=\"fa fa-chevron-circle-down\"><\/i><\/span>\r\n      <a href=\"#whats-the-mittendorf-williams-rule\" class=\"mn-jump-anchor scroll-to-hash\">\r\n          <p>What\u2019s the Mittendorf-Williams rule?<\/p>\n      <\/a>\r\n\r\n      <\/li>\r\n              <\/ul>\r\n    <\/div>\r\n    \n<p>&nbsp;<\/p>\n     \r\n     <script type=\"application\/ld+json\">\r\n    {\r\n        \"@context\": \"http:\/\/schema.org\",\r\n        \"@type\": \"Question\",\r\n        \"text\": \"Pregnancy due date calculator video\",\r\n        \"author\": {\r\n            \"@type\": \"Person\",\r\n            \"name\": \"Genevieve Howland\"\r\n        },\r\n        \"acceptedAnswer\": {\r\n            \"@type\": \"Answer\",\r\n            \"text\": \"<br \\\/>\\nLearn how to calculator your pregnancy due date in this video.<\\\/p>\\n<div class=\\\"embed-wrap  embed-youtu-be \\\"style=\\\"padding-bottom: 56.2%\\\"><iframe title=\\\"BEST Way to Calculate Your Pregnancy Due Date\\\" width=\\\"500\\\" height=\\\"281\\\" src=\\\"https:\\\/\\\/www.youtube.com\\\/embed\\\/qzDMlt63_8c?feature=oembed\\\" frameborder=\\\"0\\\" allow=\\\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\\\" referrerpolicy=\\\"strict-origin-when-cross-origin\\\" allowfullscreen><\\\/iframe><\\\/div>\\n<p>\",\r\n            \"author\": {\r\n                \"@type\": \"Person\",\r\n                \"name\": \"Genevieve Howland\"\r\n            }\r\n        },\r\n        \"suggestedAnswer\": {\r\n            \"@type\": \"Answer\",\r\n            \"text\": \"<br \\\/>\\nLearn how to calculator your pregnancy due date in this video.<\\\/p>\\n<div class=\\\"embed-wrap  embed-youtu-be \\\"style=\\\"padding-bottom: 56.2%\\\"><iframe title=\\\"BEST Way to Calculate Your Pregnancy Due Date\\\" width=\\\"500\\\" height=\\\"281\\\" src=\\\"https:\\\/\\\/www.youtube.com\\\/embed\\\/qzDMlt63_8c?feature=oembed\\\" frameborder=\\\"0\\\" allow=\\\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\\\" referrerpolicy=\\\"strict-origin-when-cross-origin\\\" allowfullscreen><\\\/iframe><\\\/div>\\n<p>\",\r\n            \"author\": {\r\n                \"@type\": \"Person\",\r\n                \"name\": \"Genevieve Howland\"\r\n            }\r\n        }\r\n    }\r\n    <\/script>\r\n\r\n    <div class=\"faq\" id=\"pregnancy-due-date-calculator-video\">\r\n      <h2 itemprop=\"name\">Pregnancy due date calculator video<\/h2>\r\n       <p>\nLearn how to calculator your pregnancy due date in this video.<\/p>\n<div class=\"embed-wrap  embed-youtu-be \"style=\"padding-bottom: 56.2%\"><iframe loading=\"lazy\" title=\"BEST Way to Calculate Your Pregnancy Due Date\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/qzDMlt63_8c?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<p>\n    <\/div> \r\n   \n     \r\n     <script type=\"application\/ld+json\">\r\n    {\r\n        \"@context\": \"http:\/\/schema.org\",\r\n        \"@type\": \"Question\",\r\n        \"text\": \"When is my baby's due date?\",\r\n        \"author\": {\r\n            \"@type\": \"Person\",\r\n            \"name\": \"Genevieve Howland\"\r\n        },\r\n        \"acceptedAnswer\": {\r\n            \"@type\": \"Answer\",\r\n            \"text\": \"<br \\\/>\\nSo you got your <a href=\\\"https:\\\/\\\/mamanatural.com\\\/positive-pregnancy-test\\\/\\\">positive pregnancy test<\\\/a>, you&#8217;re feeling some\\u00a0<a href=\\\"https:\\\/\\\/mamanatural.com\\\/signs-of-pregnancy\\\/\\\">early signs of pregnancy<\\\/a>,\\u00a0and now you&#8217;re wondering, \\u201cwhen is my baby&#8217;s due date?\\u201d We&#8217;ve got you covered with the Mama Natural due date calculator!<\\\/p>\\n<p>Enter your information in the due date calculator above and discover the best estimate for when your little bundle of joy will\\u00a0make his or her appearance.<br \\\/>\\n\",\r\n            \"author\": {\r\n                \"@type\": \"Person\",\r\n                \"name\": \"Genevieve Howland\"\r\n            }\r\n        },\r\n        \"suggestedAnswer\": {\r\n            \"@type\": \"Answer\",\r\n            \"text\": \"<br \\\/>\\nSo you got your <a href=\\\"https:\\\/\\\/mamanatural.com\\\/positive-pregnancy-test\\\/\\\">positive pregnancy test<\\\/a>, you&#8217;re feeling some\\u00a0<a href=\\\"https:\\\/\\\/mamanatural.com\\\/signs-of-pregnancy\\\/\\\">early signs of pregnancy<\\\/a>,\\u00a0and now you&#8217;re wondering, \\u201cwhen is my baby&#8217;s due date?\\u201d We&#8217;ve got you covered with the Mama Natural due date calculator!<\\\/p>\\n<p>Enter your information in the due date calculator above and discover the best estimate for when your little bundle of joy will\\u00a0make his or her appearance.<br \\\/>\\n\",\r\n            \"author\": {\r\n                \"@type\": \"Person\",\r\n                \"name\": \"Genevieve Howland\"\r\n            }\r\n        }\r\n    }\r\n    <\/script>\r\n\r\n    <div class=\"faq\" id=\"when-is-my-babys-due-date\">\r\n      <h2 itemprop=\"name\">When is my baby&#8217;s due date?<\/h2>\r\n       <p>\nSo you got your <a href=\"https:\/\/mamanatural.com\/positive-pregnancy-test\/\">positive pregnancy test<\/a>, you&#8217;re feeling some\u00a0<a href=\"https:\/\/mamanatural.com\/signs-of-pregnancy\/\">early signs of pregnancy<\/a>,\u00a0and now you&#8217;re wondering, \u201cwhen is my baby&#8217;s due date?\u201d We&#8217;ve got you covered with the Mama Natural due date calculator!<\/p>\n<p>Enter your information in the due date calculator above and discover the best estimate for when your little bundle of joy will\u00a0make his or her appearance.<\/p>\n    <\/div> \r\n   \n     \r\n     <script type=\"application\/ld+json\">\r\n    {\r\n        \"@context\": \"http:\/\/schema.org\",\r\n        \"@type\": \"Question\",\r\n        \"text\": \"How does this due date calculator work?\",\r\n        \"author\": {\r\n            \"@type\": \"Person\",\r\n            \"name\": \"Genevieve Howland\"\r\n        },\r\n        \"acceptedAnswer\": {\r\n            \"@type\": \"Answer\",\r\n            \"text\": \"<br \\\/>\\nBecause you may not know <em><strong>exactly<\\\/strong><\\\/em> when you ovulated or conceived, a due date calculator will typically calculate your estimated due date based on your last menstrual period (LMP).<\\\/p>\\n<p>Our online due date calculator uses a simple method to calculate your due date.<\\\/p>\\n<ul>\\n<li>Your due date is estimated to be 40 weeks <em>after<\\\/em> the first\\u00a0day of your LMP<\\\/li>\\n<li>Your cycle is assumed to be 28 days long, with ovulation occurring at day 14<\\\/li>\\n<li>Therefore the calculator adds\\u00a0280 days (40 weeks) to your LMP<\\\/li>\\n<\\\/ul>\\n<p>This method of due date calculation is known as <a href=\\\"https:\\\/\\\/en.wikipedia.org\\\/wiki\\\/Naegele%27s_rule\\\" target=\\\"_blank\\\" rel=\\\"noopener noreferrer\\\">Naegele\\u2019s rule<\\\/a>\\u00a0(more info on this below).<\\\/p>\\n<p>\",\r\n            \"author\": {\r\n                \"@type\": \"Person\",\r\n                \"name\": \"Genevieve Howland\"\r\n            }\r\n        },\r\n        \"suggestedAnswer\": {\r\n            \"@type\": \"Answer\",\r\n            \"text\": \"<br \\\/>\\nBecause you may not know <em><strong>exactly<\\\/strong><\\\/em> when you ovulated or conceived, a due date calculator will typically calculate your estimated due date based on your last menstrual period (LMP).<\\\/p>\\n<p>Our online due date calculator uses a simple method to calculate your due date.<\\\/p>\\n<ul>\\n<li>Your due date is estimated to be 40 weeks <em>after<\\\/em> the first\\u00a0day of your LMP<\\\/li>\\n<li>Your cycle is assumed to be 28 days long, with ovulation occurring at day 14<\\\/li>\\n<li>Therefore the calculator adds\\u00a0280 days (40 weeks) to your LMP<\\\/li>\\n<\\\/ul>\\n<p>This method of due date calculation is known as <a href=\\\"https:\\\/\\\/en.wikipedia.org\\\/wiki\\\/Naegele%27s_rule\\\" target=\\\"_blank\\\" rel=\\\"noopener noreferrer\\\">Naegele\\u2019s rule<\\\/a>\\u00a0(more info on this below).<\\\/p>\\n<p>\",\r\n            \"author\": {\r\n                \"@type\": \"Person\",\r\n                \"name\": \"Genevieve Howland\"\r\n            }\r\n        }\r\n    }\r\n    <\/script>\r\n\r\n    <div class=\"faq\" id=\"how-does-this-due-date-calculator-work\">\r\n      <h2 itemprop=\"name\">How does this due date calculator work?<\/h2>\r\n       <p>\nBecause you may not know <em><strong>exactly<\/strong><\/em> when you ovulated or conceived, a due date calculator will typically calculate your estimated due date based on your last menstrual period (LMP).<\/p>\n<p>Our online due date calculator uses a simple method to calculate your due date.<\/p>\n<ul>\n<li>Your due date is estimated to be 40 weeks <em>after<\/em> the first\u00a0day of your LMP<\/li>\n<li>Your cycle is assumed to be 28 days long, with ovulation occurring at day 14<\/li>\n<li>Therefore the calculator adds\u00a0280 days (40 weeks) to your LMP<\/li>\n<\/ul>\n<p>This method of due date calculation is known as <a href=\"https:\/\/en.wikipedia.org\/wiki\/Naegele%27s_rule\" target=\"_blank\" rel=\"noopener noreferrer\">Naegele\u2019s rule<\/a>\u00a0(more info on this below).<\/p>\n<p>\n    <\/div> \r\n   \n<span class=\"media-wrap image-wrap img-54508 \"> <span class=\"thumbnail\" style=\"border:none; ;\"> <span class=\"lazy-image-wrap\" data-loader=\"loadLazyElement\" data-embedhtml=\"&lt;img width=&quot;750&quot; height=&quot;348&quot; src=&quot;https:\/\/www.mamanatural.com\/wp-content\/uploads\/Due-date-calculator-quote-Our-standard-due-date-calculator-adds-280-days-40-weeks-to-the-date-of-your-last-menstrual-period-LMP-750x348.png&quot; class=&quot;img-responsive &quot; alt=&quot;Our standard due date calculator adds\u00a0280 days (40 weeks) to the date of your last menstrual period (LMP).&quot; style=&quot;border:none;&quot; srcset=&quot;https:\/\/www.mamanatural.com\/wp-content\/uploads\/Due-date-calculator-quote-Our-standard-due-date-calculator-adds-280-days-40-weeks-to-the-date-of-your-last-menstrual-period-LMP-750x348.png 750w, https:\/\/www.mamanatural.com\/wp-content\/uploads\/Due-date-calculator-quote-Our-standard-due-date-calculator-adds-280-days-40-weeks-to-the-date-of-your-last-menstrual-period-LMP-250x116.png 250w, https:\/\/www.mamanatural.com\/wp-content\/uploads\/Due-date-calculator-quote-Our-standard-due-date-calculator-adds-280-days-40-weeks-to-the-date-of-your-last-menstrual-period-LMP-375x174.png 375w&quot; sizes=&quot;(max-width: 750px) 100vw, 750px&quot; \/&gt;\"><span class=\"sr-only\">Due date calculator quote Our standard due date calculator adds\u00a0280 days (40 weeks) to the date of your last menstrual period (LMP)<\/span><span class=\"lazy-placeholder-wrap\" style=\"\"><span class=\"lazy-placeholder\" style=\" padding-bottom: 46.4%;background: url(https:\/\/www.mamanatural.com\/wp-content\/uploads\/Mama-Natural-Logo-Grayscale-250x141.png) no-repeat center center;background-size: contain;\"><\/span><\/span><\/span> <\/span> <\/span>\n     \r\n     <script type=\"application\/ld+json\">\r\n    {\r\n        \"@context\": \"http:\/\/schema.org\",\r\n        \"@type\": \"Question\",\r\n        \"text\": \"My cycle isn't 28 days. Will this due date calculator work for me?\",\r\n        \"author\": {\r\n            \"@type\": \"Person\",\r\n            \"name\": \"Genevieve Howland\"\r\n        },\r\n        \"acceptedAnswer\": {\r\n            \"@type\": \"Answer\",\r\n            \"text\": \"<\\\/p>\\n<p>Yes. The logic behind our pregnancy calculator works as follows:<\\\/p>\\n<ul>\\n<li>The average cycle length is 28 days<\\\/li>\\n<li>If your cycle length is shorter, your due date will be earlier\\n<ul>\\n<li>For every day your cycle is shorter, your due date moves one day earlier<\\\/li>\\n<\\\/ul>\\n<\\\/li>\\n<li>Similarly, if your cycle is longer, your due date will be later\\n<ul>\\n<li>For every day your cycle is longer, your due date moves one day later<\\\/li>\\n<\\\/ul>\\n<\\\/li>\\n<\\\/ul>\\n<p>\",\r\n            \"author\": {\r\n                \"@type\": \"Person\",\r\n                \"name\": \"Genevieve Howland\"\r\n            }\r\n        },\r\n        \"suggestedAnswer\": {\r\n            \"@type\": \"Answer\",\r\n            \"text\": \"<\\\/p>\\n<p>Yes. The logic behind our pregnancy calculator works as follows:<\\\/p>\\n<ul>\\n<li>The average cycle length is 28 days<\\\/li>\\n<li>If your cycle length is shorter, your due date will be earlier\\n<ul>\\n<li>For every day your cycle is shorter, your due date moves one day earlier<\\\/li>\\n<\\\/ul>\\n<\\\/li>\\n<li>Similarly, if your cycle is longer, your due date will be later\\n<ul>\\n<li>For every day your cycle is longer, your due date moves one day later<\\\/li>\\n<\\\/ul>\\n<\\\/li>\\n<\\\/ul>\\n<p>\",\r\n            \"author\": {\r\n                \"@type\": \"Person\",\r\n                \"name\": \"Genevieve Howland\"\r\n            }\r\n        }\r\n    }\r\n    <\/script>\r\n\r\n    <div class=\"faq\" id=\"28days\">\r\n      <h2 itemprop=\"name\">My cycle isn&#8217;t 28 days. Will this due date calculator work for me?<\/h2>\r\n       <\/p>\n<p>Yes. The logic behind our pregnancy calculator works as follows:<\/p>\n<ul>\n<li>The average cycle length is 28 days<\/li>\n<li>If your cycle length is shorter, your due date will be earlier\n<ul>\n<li>For every day your cycle is shorter, your due date moves one day earlier<\/li>\n<\/ul>\n<\/li>\n<li>Similarly, if your cycle is longer, your due date will be later\n<ul>\n<li>For every day your cycle is longer, your due date moves one day later<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\n    <\/div> \r\n   \n<span class=\"media-wrap image-wrap img-55405 \"> <span class=\"thumbnail\" style=\"border:none; ;\"> <span class=\"lazy-image-wrap\" data-loader=\"loadLazyElement\" data-embedhtml=\"&lt;img width=&quot;750&quot; height=&quot;500&quot; src=&quot;https:\/\/www.mamanatural.com\/wp-content\/uploads\/What-is-the-date-of-conception-due-date-calculator-illustration-750x500.jpg&quot; class=&quot;img-responsive &quot; alt=&quot;What is the date of conception when sperm meets egg - due date calculator illustration&quot; style=&quot;border:none;&quot; srcset=&quot;https:\/\/www.mamanatural.com\/wp-content\/uploads\/What-is-the-date-of-conception-due-date-calculator-illustration-750x500.jpg 750w, https:\/\/www.mamanatural.com\/wp-content\/uploads\/What-is-the-date-of-conception-due-date-calculator-illustration-450x300.jpg 450w, https:\/\/www.mamanatural.com\/wp-content\/uploads\/What-is-the-date-of-conception-due-date-calculator-illustration-250x167.jpg 250w, https:\/\/www.mamanatural.com\/wp-content\/uploads\/What-is-the-date-of-conception-due-date-calculator-illustration-375x250.jpg 375w, https:\/\/www.mamanatural.com\/wp-content\/uploads\/What-is-the-date-of-conception-due-date-calculator-illustration.jpg 2000w&quot; sizes=&quot;(max-width: 750px) 100vw, 750px&quot; \/&gt;\"><span class=\"sr-only\">What is the date of conception due date calculator illustration<\/span><span class=\"lazy-placeholder-wrap\" style=\"\"><span class=\"lazy-placeholder\" style=\" padding-bottom: 66.6667%;background: url(https:\/\/www.mamanatural.com\/wp-content\/uploads\/Mama-Natural-Logo-Grayscale-250x141.png) no-repeat center center;background-size: contain;\"><\/span><\/span><\/span> <\/span> <\/span>\n     \r\n     <script type=\"application\/ld+json\">\r\n    {\r\n        \"@context\": \"http:\/\/schema.org\",\r\n        \"@type\": \"Question\",\r\n        \"text\": \"How do you calculate due date from conception?\",\r\n        \"author\": {\r\n            \"@type\": \"Person\",\r\n            \"name\": \"Genevieve Howland\"\r\n        },\r\n        \"acceptedAnswer\": {\r\n            \"@type\": \"Answer\",\r\n            \"text\": \"<br \\\/>\\nIf you know when you conceived, our pregnancy calculator calculates your due date by adding 38 weeks to the date of conception. This method of calculation may be more accurate than a LMP due date calculation if you have irregular or consistently longer or shorter cycles than 28 days.<br \\\/>\\n\",\r\n            \"author\": {\r\n                \"@type\": \"Person\",\r\n                \"name\": \"Genevieve Howland\"\r\n            }\r\n        },\r\n        \"suggestedAnswer\": {\r\n            \"@type\": \"Answer\",\r\n            \"text\": \"<br \\\/>\\nIf you know when you conceived, our pregnancy calculator calculates your due date by adding 38 weeks to the date of conception. This method of calculation may be more accurate than a LMP due date calculation if you have irregular or consistently longer or shorter cycles than 28 days.<br \\\/>\\n\",\r\n            \"author\": {\r\n                \"@type\": \"Person\",\r\n                \"name\": \"Genevieve Howland\"\r\n            }\r\n        }\r\n    }\r\n    <\/script>\r\n\r\n    <div class=\"faq\" id=\"how-do-you-calculate-due-date-from-conception\">\r\n      <h2 itemprop=\"name\">How do you calculate due date from conception?<\/h2>\r\n       <p>\nIf you know when you conceived, our pregnancy calculator calculates your due date by adding 38 weeks to the date of conception. This method of calculation may be more accurate than a LMP due date calculation if you have irregular or consistently longer or shorter cycles than 28 days.<\/p>\n    <\/div> \r\n   \n     \r\n     <script type=\"application\/ld+json\">\r\n    {\r\n        \"@context\": \"http:\/\/schema.org\",\r\n        \"@type\": \"Question\",\r\n        \"text\": \"What exactly <em>is<\\\/em> the date of conception?\",\r\n        \"author\": {\r\n            \"@type\": \"Person\",\r\n            \"name\": \"Genevieve Howland\"\r\n        },\r\n        \"acceptedAnswer\": {\r\n            \"@type\": \"Answer\",\r\n            \"text\": \"<br \\\/>\\nThe date of conception is the day that the egg and sperm meet.<\\\/p>\\n<p>Women who track their ovulation may know their exact date of conception. But for many women, date of conception can be tricky to pinpoint.<\\\/p>\\n<p>Sperm can live in a woman&#8217;s body for up to five days, and the ovum (egg) can live for up to 24 hours after being released. In other words, you have a six-day window where you could potentially get pregnant each month.<\\\/p>\\n<p>Do you already know your due date but want to know when you likely conceived? Try our <strong><a href=\\\"https:\\\/\\\/mamanatural.com\\\/reverse-due-date-calculator\\\/\\\"><em>reverse<\\\/em> due date calculator<\\\/a><\\\/strong>.<\\\/p>\\n<p>\",\r\n            \"author\": {\r\n                \"@type\": \"Person\",\r\n                \"name\": \"Genevieve Howland\"\r\n            }\r\n        },\r\n        \"suggestedAnswer\": {\r\n            \"@type\": \"Answer\",\r\n            \"text\": \"<br \\\/>\\nThe date of conception is the day that the egg and sperm meet.<\\\/p>\\n<p>Women who track their ovulation may know their exact date of conception. But for many women, date of conception can be tricky to pinpoint.<\\\/p>\\n<p>Sperm can live in a woman&#8217;s body for up to five days, and the ovum (egg) can live for up to 24 hours after being released. In other words, you have a six-day window where you could potentially get pregnant each month.<\\\/p>\\n<p>Do you already know your due date but want to know when you likely conceived? Try our <strong><a href=\\\"https:\\\/\\\/mamanatural.com\\\/reverse-due-date-calculator\\\/\\\"><em>reverse<\\\/em> due date calculator<\\\/a><\\\/strong>.<\\\/p>\\n<p>\",\r\n            \"author\": {\r\n                \"@type\": \"Person\",\r\n                \"name\": \"Genevieve Howland\"\r\n            }\r\n        }\r\n    }\r\n    <\/script>\r\n\r\n    <div class=\"faq\" id=\"what-exactly-is-the-date-of-conception\">\r\n      <h2 itemprop=\"name\">What exactly <em>is<\/em> the date of conception?<\/h2>\r\n       <p>\nThe date of conception is the day that the egg and sperm meet.<\/p>\n<p>Women who track their ovulation may know their exact date of conception. But for many women, date of conception can be tricky to pinpoint.<\/p>\n<p>Sperm can live in a woman&#8217;s body for up to five days, and the ovum (egg) can live for up to 24 hours after being released. In other words, you have a six-day window where you could potentially get pregnant each month.<\/p>\n<p>Do you already know your due date but want to know when you likely conceived? Try our <strong><a href=\"https:\/\/mamanatural.com\/reverse-due-date-calculator\/\"><em>reverse<\/em> due date calculator<\/a><\/strong>.<\/p>\n<p>\n    <\/div> \r\n   \n     \r\n     <script type=\"application\/ld+json\">\r\n    {\r\n        \"@context\": \"http:\/\/schema.org\",\r\n        \"@type\": \"Question\",\r\n        \"text\": \"What is an estimated due date (EDD)?\",\r\n        \"author\": {\r\n            \"@type\": \"Person\",\r\n            \"name\": \"Genevieve Howland\"\r\n        },\r\n        \"acceptedAnswer\": {\r\n            \"@type\": \"Answer\",\r\n            \"text\": \"<br \\\/>\\nAn estimated due date (EDD) is a \\u201cbest guess\\u201d as to when baby might be born based on a due date calculator like this one.<\\\/p>\\n<p><strong>However, only 4% of babies are born on their due date!<\\\/strong> Whereas 80% of babies are born within the window of two weeks before and two weeks after your due date calculator results. (See \\u201cdue month\\u201d section below.)<br \\\/>\\n\",\r\n            \"author\": {\r\n                \"@type\": \"Person\",\r\n                \"name\": \"Genevieve Howland\"\r\n            }\r\n        },\r\n        \"suggestedAnswer\": {\r\n            \"@type\": \"Answer\",\r\n            \"text\": \"<br \\\/>\\nAn estimated due date (EDD) is a \\u201cbest guess\\u201d as to when baby might be born based on a due date calculator like this one.<\\\/p>\\n<p><strong>However, only 4% of babies are born on their due date!<\\\/strong> Whereas 80% of babies are born within the window of two weeks before and two weeks after your due date calculator results. (See \\u201cdue month\\u201d section below.)<br \\\/>\\n\",\r\n            \"author\": {\r\n                \"@type\": \"Person\",\r\n                \"name\": \"Genevieve Howland\"\r\n            }\r\n        }\r\n    }\r\n    <\/script>\r\n\r\n    <div class=\"faq\" id=\"what-is-an-estimated-due-date-edd\">\r\n      <h2 itemprop=\"name\">What is an estimated due date (EDD)?<\/h2>\r\n       <p>\nAn estimated due date (EDD) is a \u201cbest guess\u201d as to when baby might be born based on a due date calculator like this one.<\/p>\n<p><strong>However, only 4% of babies are born on their due date!<\/strong> Whereas 80% of babies are born within the window of two weeks before and two weeks after your due date calculator results. (See \u201cdue month\u201d section below.)<\/p>\n    <\/div> \r\n   \n<span class=\"media-wrap image-wrap img-55409 \"> <span class=\"thumbnail\" style=\"border:none; ;\"> <span class=\"lazy-image-wrap\" data-loader=\"loadLazyElement\" data-embedhtml=\"&lt;img width=&quot;750&quot; height=&quot;473&quot; src=&quot;https:\/\/www.mamanatural.com\/wp-content\/uploads\/Baby-due-date-on-a-calendar-with-pregnant-woman-background-only-4-of-babies-are-born-on-their-due-date-750x473.jpg&quot; class=&quot;img-responsive &quot; alt=&quot;Baby due date on a calendar with pregnant woman background&quot; style=&quot;border:none;&quot; srcset=&quot;https:\/\/www.mamanatural.com\/wp-content\/uploads\/Baby-due-date-on-a-calendar-with-pregnant-woman-background-only-4-of-babies-are-born-on-their-due-date-750x473.jpg 750w, https:\/\/www.mamanatural.com\/wp-content\/uploads\/Baby-due-date-on-a-calendar-with-pregnant-woman-background-only-4-of-babies-are-born-on-their-due-date-450x284.jpg 450w, https:\/\/www.mamanatural.com\/wp-content\/uploads\/Baby-due-date-on-a-calendar-with-pregnant-woman-background-only-4-of-babies-are-born-on-their-due-date-250x158.jpg 250w, https:\/\/www.mamanatural.com\/wp-content\/uploads\/Baby-due-date-on-a-calendar-with-pregnant-woman-background-only-4-of-babies-are-born-on-their-due-date-375x236.jpg 375w, https:\/\/www.mamanatural.com\/wp-content\/uploads\/Baby-due-date-on-a-calendar-with-pregnant-woman-background-only-4-of-babies-are-born-on-their-due-date.jpg 1874w&quot; sizes=&quot;(max-width: 750px) 100vw, 750px&quot; \/&gt;\"><span class=\"sr-only\">Baby due date on a calendar with pregnant woman background &#8211; only 4% of babies are born on their due date<\/span><span class=\"lazy-placeholder-wrap\" style=\"\"><span class=\"lazy-placeholder\" style=\" padding-bottom: 63.0667%;background: url(https:\/\/www.mamanatural.com\/wp-content\/uploads\/Mama-Natural-Logo-Grayscale-250x141.png) no-repeat center center;background-size: contain;\"><\/span><\/span><\/span> <\/span> <\/span>\n     \r\n     <script type=\"application\/ld+json\">\r\n    {\r\n        \"@context\": \"http:\/\/schema.org\",\r\n        \"@type\": \"Question\",\r\n        \"text\": \"What is \\u201cgestational age?\\u201d Can it be different than what the calculator shows?\",\r\n        \"author\": {\r\n            \"@type\": \"Person\",\r\n            \"name\": \"Genevieve Howland\"\r\n        },\r\n        \"acceptedAnswer\": {\r\n            \"@type\": \"Answer\",\r\n            \"text\": \"<br \\\/>\\nGestational age (GA) is\\u00a0the term used to describe how far along the pregnancy is and how long baby has been gestating (growing in the uterus).<\\\/p>\\n<p>If you get an ultrasound you may notice a \\u201cGA\\u201d on the image with a number of weeks and days. This figure is based on how the baby is measuring, not on your LMP, which the due date calculator uses.<\\\/p>\\n<p><strong>It&#8217;s normal for these dates to not match up perfectly.<\\\/strong> If there are significant differences in the dates, your doctor may want to dig deeper to determine conception date. As a result, your midwife or doctor may change your due date based on the ultrasound gestational age.<\\\/p>\\n<p>Early ultrasounds are very accurate when dating a pregnancy and can be helpful if you don&#8217;t know your LMP or your periods are irregular.<\\\/p>\\n<p>Note that you don&#8217;t\\u00a0<em>have<\\\/em> to have an early ultrasound, especially if you are fairly certain of your cycle length and conception window. <a href=\\\"https:\\\/\\\/www.cochranelibrary.com\\\/central\\\/doi\\\/10.1002\\\/central\\\/CN-00554244\\\/full\\\">This study<\\\/a>\\u00a0shows that early dating ultrasounds don&#8217;t change the incidence of <a href=\\\"https:\\\/\\\/mamanatural.com\\\/labor-induction\\\/\\\">induction<\\\/a>.<br \\\/>\\n\",\r\n            \"author\": {\r\n                \"@type\": \"Person\",\r\n                \"name\": \"Genevieve Howland\"\r\n            }\r\n        },\r\n        \"suggestedAnswer\": {\r\n            \"@type\": \"Answer\",\r\n            \"text\": \"<br \\\/>\\nGestational age (GA) is\\u00a0the term used to describe how far along the pregnancy is and how long baby has been gestating (growing in the uterus).<\\\/p>\\n<p>If you get an ultrasound you may notice a \\u201cGA\\u201d on the image with a number of weeks and days. This figure is based on how the baby is measuring, not on your LMP, which the due date calculator uses.<\\\/p>\\n<p><strong>It&#8217;s normal for these dates to not match up perfectly.<\\\/strong> If there are significant differences in the dates, your doctor may want to dig deeper to determine conception date. As a result, your midwife or doctor may change your due date based on the ultrasound gestational age.<\\\/p>\\n<p>Early ultrasounds are very accurate when dating a pregnancy and can be helpful if you don&#8217;t know your LMP or your periods are irregular.<\\\/p>\\n<p>Note that you don&#8217;t\\u00a0<em>have<\\\/em> to have an early ultrasound, especially if you are fairly certain of your cycle length and conception window. <a href=\\\"https:\\\/\\\/www.cochranelibrary.com\\\/central\\\/doi\\\/10.1002\\\/central\\\/CN-00554244\\\/full\\\">This study<\\\/a>\\u00a0shows that early dating ultrasounds don&#8217;t change the incidence of <a href=\\\"https:\\\/\\\/mamanatural.com\\\/labor-induction\\\/\\\">induction<\\\/a>.<br \\\/>\\n\",\r\n            \"author\": {\r\n                \"@type\": \"Person\",\r\n                \"name\": \"Genevieve Howland\"\r\n            }\r\n        }\r\n    }\r\n    <\/script>\r\n\r\n    <div class=\"faq\" id=\"GA\">\r\n      <h2 itemprop=\"name\">What is \u201cgestational age?\u201d Can it be different than what the calculator shows?<\/h2>\r\n       <p>\nGestational age (GA) is\u00a0the term used to describe how far along the pregnancy is and how long baby has been gestating (growing in the uterus).<\/p>\n<p>If you get an ultrasound you may notice a \u201cGA\u201d on the image with a number of weeks and days. This figure is based on how the baby is measuring, not on your LMP, which the due date calculator uses.<\/p>\n<p><strong>It&#8217;s normal for these dates to not match up perfectly.<\/strong> If there are significant differences in the dates, your doctor may want to dig deeper to determine conception date. As a result, your midwife or doctor may change your due date based on the ultrasound gestational age.<\/p>\n<p>Early ultrasounds are very accurate when dating a pregnancy and can be helpful if you don&#8217;t know your LMP or your periods are irregular.<\/p>\n<p>Note that you don&#8217;t\u00a0<em>have<\/em> to have an early ultrasound, especially if you are fairly certain of your cycle length and conception window. <a href=\"https:\/\/www.cochranelibrary.com\/central\/doi\/10.1002\/central\/CN-00554244\/full\">This study<\/a>\u00a0shows that early dating ultrasounds don&#8217;t change the incidence of <a href=\"https:\/\/mamanatural.com\/labor-induction\/\">induction<\/a>.<\/p>\n    <\/div> \r\n   \n     \r\n     <script type=\"application\/ld+json\">\r\n    {\r\n        \"@context\": \"http:\/\/schema.org\",\r\n        \"@type\": \"Question\",\r\n        \"text\": \"How are the weeks of pregnancy calculated?\",\r\n        \"author\": {\r\n            \"@type\": \"Person\",\r\n            \"name\": \"Genevieve Howland\"\r\n        },\r\n        \"acceptedAnswer\": {\r\n            \"@type\": \"Answer\",\r\n            \"text\": \"<br \\\/>\\nThe 40 weeks of pregnancy begin on the first day of your last menstrual period.<\\\/p>\\n<p>This can be a little confusing because, for most people, conception doesn&#8217;t occur until day 14 of the menstrual cycle. So yes, you aren&#8217;t <em>actually<\\\/em> pregnant during those first two weeks of pregnancy.<\\\/p>\\n<p>Here&#8217;s a more in-depth answer to that perennial question of\\u00a0<a href=\\\"https:\\\/\\\/mamanatural.com\\\/how-many-weeks-pregnant-am-i\\\/\\\"><em>H<\\\/em><em>ow many weeks pregnant am I?<\\\/em><\\\/a><br \\\/>\\n\",\r\n            \"author\": {\r\n                \"@type\": \"Person\",\r\n                \"name\": \"Genevieve Howland\"\r\n            }\r\n        },\r\n        \"suggestedAnswer\": {\r\n            \"@type\": \"Answer\",\r\n            \"text\": \"<br \\\/>\\nThe 40 weeks of pregnancy begin on the first day of your last menstrual period.<\\\/p>\\n<p>This can be a little confusing because, for most people, conception doesn&#8217;t occur until day 14 of the menstrual cycle. So yes, you aren&#8217;t <em>actually<\\\/em> pregnant during those first two weeks of pregnancy.<\\\/p>\\n<p>Here&#8217;s a more in-depth answer to that perennial question of\\u00a0<a href=\\\"https:\\\/\\\/mamanatural.com\\\/how-many-weeks-pregnant-am-i\\\/\\\"><em>H<\\\/em><em>ow many weeks pregnant am I?<\\\/em><\\\/a><br \\\/>\\n\",\r\n            \"author\": {\r\n                \"@type\": \"Person\",\r\n                \"name\": \"Genevieve Howland\"\r\n            }\r\n        }\r\n    }\r\n    <\/script>\r\n\r\n    <div class=\"faq\" id=\"how-are-the-weeks-of-pregnancy-calculated\">\r\n      <h2 itemprop=\"name\">How are the weeks of pregnancy calculated?<\/h2>\r\n       <p>\nThe 40 weeks of pregnancy begin on the first day of your last menstrual period.<\/p>\n<p>This can be a little confusing because, for most people, conception doesn&#8217;t occur until day 14 of the menstrual cycle. So yes, you aren&#8217;t <em>actually<\/em> pregnant during those first two weeks of pregnancy.<\/p>\n<p>Here&#8217;s a more in-depth answer to that perennial question of\u00a0<a href=\"https:\/\/mamanatural.com\/how-many-weeks-pregnant-am-i\/\"><em>H<\/em><em>ow many weeks pregnant am I?<\/em><\/a><\/p>\n    <\/div> \r\n   \n     \r\n     <script type=\"application\/ld+json\">\r\n    {\r\n        \"@context\": \"http:\/\/schema.org\",\r\n        \"@type\": \"Question\",\r\n        \"text\": \"What is a <em>\\u201cdue month?\\u201d<\\\/em>\",\r\n        \"author\": {\r\n            \"@type\": \"Person\",\r\n            \"name\": \"Genevieve Howland\"\r\n        },\r\n        \"acceptedAnswer\": {\r\n            \"@type\": \"Answer\",\r\n            \"text\": \"<br \\\/>\\nA \\u201cdue month\\u201d is a more accurate timeframe for when you can expect to deliver your baby. Only 4% of babies are born on their due date. Whereas 80% of babies arrive either two weeks before the due date or two weeks after. Hence the term \\u201cdue month.\\u201d<\\\/p>\\n<blockquote><p>The length of a natural pregnancy can vary by as much as five weeks. (<a href=\\\"https:\\\/\\\/www.bbc.com\\\/news\\\/health-23594668\\\">source<\\\/a>)<\\\/p><\\\/blockquote>\\n<p>A due month helps some mamas reduce the stress and fear of going past their due date.<\\\/p>\\n<p>To calculate your due month, simply <strong>subtract<\\\/strong> two weeks from your EDD given by your practitioner or our due date calculator and also <strong>add<\\\/strong> two weeks to your EDD. <em>Voil\\u00e0<\\\/em>, your due month!<\\\/p>\\n<p>Yet another way to handle this tricky business of calculating your pregnancy calendar is to add two weeks to the end of your EDD and say, \\u201cBaby will be here before [that date].\\u201d<br \\\/>\\n\",\r\n            \"author\": {\r\n                \"@type\": \"Person\",\r\n                \"name\": \"Genevieve Howland\"\r\n            }\r\n        },\r\n        \"suggestedAnswer\": {\r\n            \"@type\": \"Answer\",\r\n            \"text\": \"<br \\\/>\\nA \\u201cdue month\\u201d is a more accurate timeframe for when you can expect to deliver your baby. Only 4% of babies are born on their due date. Whereas 80% of babies arrive either two weeks before the due date or two weeks after. Hence the term \\u201cdue month.\\u201d<\\\/p>\\n<blockquote><p>The length of a natural pregnancy can vary by as much as five weeks. (<a href=\\\"https:\\\/\\\/www.bbc.com\\\/news\\\/health-23594668\\\">source<\\\/a>)<\\\/p><\\\/blockquote>\\n<p>A due month helps some mamas reduce the stress and fear of going past their due date.<\\\/p>\\n<p>To calculate your due month, simply <strong>subtract<\\\/strong> two weeks from your EDD given by your practitioner or our due date calculator and also <strong>add<\\\/strong> two weeks to your EDD. <em>Voil\\u00e0<\\\/em>, your due month!<\\\/p>\\n<p>Yet another way to handle this tricky business of calculating your pregnancy calendar is to add two weeks to the end of your EDD and say, \\u201cBaby will be here before [that date].\\u201d<br \\\/>\\n\",\r\n            \"author\": {\r\n                \"@type\": \"Person\",\r\n                \"name\": \"Genevieve Howland\"\r\n            }\r\n        }\r\n    }\r\n    <\/script>\r\n\r\n    <div class=\"faq\" id=\"what-is-a-due-month\">\r\n      <h2 itemprop=\"name\">What is a <em>\u201cdue month?\u201d<\/em><\/h2>\r\n       <p>\nA \u201cdue month\u201d is a more accurate timeframe for when you can expect to deliver your baby. Only 4% of babies are born on their due date. Whereas 80% of babies arrive either two weeks before the due date or two weeks after. Hence the term \u201cdue month.\u201d<\/p>\n<blockquote>\n<p>The length of a natural pregnancy can vary by as much as five weeks. (<a href=\"https:\/\/www.bbc.com\/news\/health-23594668\">source<\/a>)<\/p>\n<\/blockquote>\n<p>A due month helps some mamas reduce the stress and fear of going past their due date.<\/p>\n<p>To calculate your due month, simply <strong>subtract<\/strong> two weeks from your EDD given by your practitioner or our due date calculator and also <strong>add<\/strong> two weeks to your EDD. <em>Voil\u00e0<\/em>, your due month!<\/p>\n<p>Yet another way to handle this tricky business of calculating your pregnancy calendar is to add two weeks to the end of your EDD and say, \u201cBaby will be here before [that date].\u201d<\/p>\n    <\/div> \r\n   \n     \r\n     <script type=\"application\/ld+json\">\r\n    {\r\n        \"@context\": \"http:\/\/schema.org\",\r\n        \"@type\": \"Question\",\r\n        \"text\": \"What is Naegele's rule for due date calculation?\",\r\n        \"author\": {\r\n            \"@type\": \"Person\",\r\n            \"name\": \"Genevieve Howland\"\r\n        },\r\n        \"acceptedAnswer\": {\r\n            \"@type\": \"Answer\",\r\n            \"text\": \"<br \\\/>\\nNaegele&#8217;s rule is what this due date calculator and pregnancy calendar is based on. Named after a German Obstetrician who practiced in the early 1800&#8217;s, Naegele&#8217;s rule predicts childbirth to occur 280 days <em><strong>after<\\\/strong> <\\\/em>the first day of the last menstrual period.<\\\/p>\\n<p>However, Naegele&#8217;s rule assumes that your cycle is 28 days long with ovulation occurring on day 14, which isn&#8217;t the case for many women. So other ways of calculating your due date may be more accurate.<\\\/p>\\n<p>(<a href=\\\"https:\\\/\\\/mamanatural.com\\\/when-will-my-baby-be-born\\\/\\\">How accurate is\\u00a0<em>your\\u00a0<\\\/em>due date?<\\\/a> Find out in this post.)<\\\/p>\\n<p>Modern data suggests that women have their babies a few days <em>after<\\\/em> their due date on average. Studies like\\u00a0<a href=\\\"https:\\\/\\\/www.ncbi.nlm.nih.gov\\\/pubmed\\\/2220340\\\">this one<\\\/a>\\u00a0found that Naegele&#8217;s rule consistently places the due date about 2-4 days too early. So a better estimate may be 40 weeks and 3 days from LMP.<\\\/p>\\n<p>Alternatively, you can use our <a href=\\\"\\\/due-date-calculator\\\/advanced-due-date\\\/\\\">Advanced Due Date Calculator<\\\/a>, which uses the Mittendorf-Williams rule to calculate your due date, which has been shown to be more accurate.<br \\\/>\\n\",\r\n            \"author\": {\r\n                \"@type\": \"Person\",\r\n                \"name\": \"Genevieve Howland\"\r\n            }\r\n        },\r\n        \"suggestedAnswer\": {\r\n            \"@type\": \"Answer\",\r\n            \"text\": \"<br \\\/>\\nNaegele&#8217;s rule is what this due date calculator and pregnancy calendar is based on. Named after a German Obstetrician who practiced in the early 1800&#8217;s, Naegele&#8217;s rule predicts childbirth to occur 280 days <em><strong>after<\\\/strong> <\\\/em>the first day of the last menstrual period.<\\\/p>\\n<p>However, Naegele&#8217;s rule assumes that your cycle is 28 days long with ovulation occurring on day 14, which isn&#8217;t the case for many women. So other ways of calculating your due date may be more accurate.<\\\/p>\\n<p>(<a href=\\\"https:\\\/\\\/mamanatural.com\\\/when-will-my-baby-be-born\\\/\\\">How accurate is\\u00a0<em>your\\u00a0<\\\/em>due date?<\\\/a> Find out in this post.)<\\\/p>\\n<p>Modern data suggests that women have their babies a few days <em>after<\\\/em> their due date on average. Studies like\\u00a0<a href=\\\"https:\\\/\\\/www.ncbi.nlm.nih.gov\\\/pubmed\\\/2220340\\\">this one<\\\/a>\\u00a0found that Naegele&#8217;s rule consistently places the due date about 2-4 days too early. So a better estimate may be 40 weeks and 3 days from LMP.<\\\/p>\\n<p>Alternatively, you can use our <a href=\\\"\\\/due-date-calculator\\\/advanced-due-date\\\/\\\">Advanced Due Date Calculator<\\\/a>, which uses the Mittendorf-Williams rule to calculate your due date, which has been shown to be more accurate.<br \\\/>\\n\",\r\n            \"author\": {\r\n                \"@type\": \"Person\",\r\n                \"name\": \"Genevieve Howland\"\r\n            }\r\n        }\r\n    }\r\n    <\/script>\r\n\r\n    <div class=\"faq\" id=\"what-is-naegeles-rule-for-due-date-calculation\">\r\n      <h2 itemprop=\"name\">What is Naegele&#8217;s rule for due date calculation?<\/h2>\r\n       <p>\nNaegele&#8217;s rule is what this due date calculator and pregnancy calendar is based on. Named after a German Obstetrician who practiced in the early 1800&#8217;s, Naegele&#8217;s rule predicts childbirth to occur 280 days <em><strong>after<\/strong> <\/em>the first day of the last menstrual period.<\/p>\n<p>However, Naegele&#8217;s rule assumes that your cycle is 28 days long with ovulation occurring on day 14, which isn&#8217;t the case for many women. So other ways of calculating your due date may be more accurate.<\/p>\n<p>(<a href=\"https:\/\/mamanatural.com\/when-will-my-baby-be-born\/\">How accurate is\u00a0<em>your\u00a0<\/em>due date?<\/a> Find out in this post.)<\/p>\n<p>Modern data suggests that women have their babies a few days <em>after<\/em> their due date on average. Studies like\u00a0<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/2220340\">this one<\/a>\u00a0found that Naegele&#8217;s rule consistently places the due date about 2-4 days too early. So a better estimate may be 40 weeks and 3 days from LMP.<\/p>\n<p>Alternatively, you can use our <a href=\"\/due-date-calculator\/advanced-due-date\/\">Advanced Due Date Calculator<\/a>, which uses the Mittendorf-Williams rule to calculate your due date, which has been shown to be more accurate.<\/p>\n    <\/div> \r\n   \n<span class=\"media-wrap image-wrap img-54507 \"> <span class=\"thumbnail\" style=\"border:none; ;\"> <span class=\"lazy-image-wrap\" data-loader=\"loadLazyElement\" data-embedhtml=\"&lt;img width=&quot;750&quot; height=&quot;283&quot; src=&quot;https:\/\/www.mamanatural.com\/wp-content\/uploads\/Due-date-calculator-quote-2-Modern-data-suggests-that-Naegeles-rule-places-the-due-date-about-2-4-days-too-early-750x283.png&quot; class=&quot;img-responsive &quot; alt=&quot;Modern data suggests that Naegele&#039;s rule places the due date about 2-4 days too early.&quot; style=&quot;border:none;&quot; srcset=&quot;https:\/\/www.mamanatural.com\/wp-content\/uploads\/Due-date-calculator-quote-2-Modern-data-suggests-that-Naegeles-rule-places-the-due-date-about-2-4-days-too-early-750x283.png 750w, https:\/\/www.mamanatural.com\/wp-content\/uploads\/Due-date-calculator-quote-2-Modern-data-suggests-that-Naegeles-rule-places-the-due-date-about-2-4-days-too-early-250x94.png 250w, https:\/\/www.mamanatural.com\/wp-content\/uploads\/Due-date-calculator-quote-2-Modern-data-suggests-that-Naegeles-rule-places-the-due-date-about-2-4-days-too-early-375x142.png 375w&quot; sizes=&quot;(max-width: 750px) 100vw, 750px&quot; \/&gt;\"><span class=\"sr-only\">Due date calculator quote 2 Modern data suggests that Naegele&#8217;s rule places the due date about 2-4 days too early<\/span><span class=\"lazy-placeholder-wrap\" style=\"\"><span class=\"lazy-placeholder\" style=\" padding-bottom: 37.7333%;background: url(https:\/\/www.mamanatural.com\/wp-content\/uploads\/Mama-Natural-Logo-Grayscale-250x141.png) no-repeat center center;background-size: contain;\"><\/span><\/span><\/span> <\/span> <\/span>\n     \r\n     <script type=\"application\/ld+json\">\r\n    {\r\n        \"@context\": \"http:\/\/schema.org\",\r\n        \"@type\": \"Question\",\r\n        \"text\": \"What\\u2019s the Mittendorf-Williams rule?\",\r\n        \"author\": {\r\n            \"@type\": \"Person\",\r\n            \"name\": \"Genevieve Howland\"\r\n        },\r\n        \"acceptedAnswer\": {\r\n            \"@type\": \"Answer\",\r\n            \"text\": \"<br \\\/>\\n<a href=\\\"https:\\\/\\\/www.ncbi.nlm.nih.gov\\\/pubmed\\\/2342739\\\">This study<\\\/a>\\u00a0done in 1990 showed that pregnancy lasted an average of 288 days past LMP for Caucasian first-time moms. For Caucasian women who were <em><strong>no<\\\/strong><strong>t<\\\/strong> <\\\/em>first-time moms, their date of delivery averaged 283 days past LMP (3 days after\\u00a0Naegele&#8217;s rule predicted). This finding is known as the\\u00a0Mittendorf-Williams rule.<\\\/p>\\n<p>While Naegele\\u2019s rule is still the most widely used formula for a due date calculator, the Mittendorf-Williams rule is proving to be more accurate. But it&#8217;s a much more complex calculation, taking into account:<\\\/p>\\n<ul>\\n<li>Maternal age<\\\/li>\\n<li>Race<\\\/li>\\n<li>Height<\\\/li>\\n<li>Weight<\\\/li>\\n<li>Number of pregnancies<\\\/li>\\n<li>Average luteal phase length<\\\/li>\\n<li>Maternal education<\\\/li>\\n<li>Alcohol during pregnancy<\\\/li>\\n<li><a href=\\\"https:\\\/\\\/mamanatural.com\\\/coffee-while-pregnant\\\/\\\">Coffee during pregnancy<\\\/a><\\\/li>\\n<\\\/ul>\\n<p>Our <a href=\\\"\\\/due-date-calculator\\\/advanced-due-date\\\/\\\">Advanced Due Date Calculator<\\\/a>\\u00a0uses the Mittendorf-Williams rule.<br \\\/>\\n\",\r\n            \"author\": {\r\n                \"@type\": \"Person\",\r\n                \"name\": \"Genevieve Howland\"\r\n            }\r\n        },\r\n        \"suggestedAnswer\": {\r\n            \"@type\": \"Answer\",\r\n            \"text\": \"<br \\\/>\\n<a href=\\\"https:\\\/\\\/www.ncbi.nlm.nih.gov\\\/pubmed\\\/2342739\\\">This study<\\\/a>\\u00a0done in 1990 showed that pregnancy lasted an average of 288 days past LMP for Caucasian first-time moms. For Caucasian women who were <em><strong>no<\\\/strong><strong>t<\\\/strong> <\\\/em>first-time moms, their date of delivery averaged 283 days past LMP (3 days after\\u00a0Naegele&#8217;s rule predicted). This finding is known as the\\u00a0Mittendorf-Williams rule.<\\\/p>\\n<p>While Naegele\\u2019s rule is still the most widely used formula for a due date calculator, the Mittendorf-Williams rule is proving to be more accurate. But it&#8217;s a much more complex calculation, taking into account:<\\\/p>\\n<ul>\\n<li>Maternal age<\\\/li>\\n<li>Race<\\\/li>\\n<li>Height<\\\/li>\\n<li>Weight<\\\/li>\\n<li>Number of pregnancies<\\\/li>\\n<li>Average luteal phase length<\\\/li>\\n<li>Maternal education<\\\/li>\\n<li>Alcohol during pregnancy<\\\/li>\\n<li><a href=\\\"https:\\\/\\\/mamanatural.com\\\/coffee-while-pregnant\\\/\\\">Coffee during pregnancy<\\\/a><\\\/li>\\n<\\\/ul>\\n<p>Our <a href=\\\"\\\/due-date-calculator\\\/advanced-due-date\\\/\\\">Advanced Due Date Calculator<\\\/a>\\u00a0uses the Mittendorf-Williams rule.<br \\\/>\\n\",\r\n            \"author\": {\r\n                \"@type\": \"Person\",\r\n                \"name\": \"Genevieve Howland\"\r\n            }\r\n        }\r\n    }\r\n    <\/script>\r\n\r\n    <div class=\"faq\" id=\"whats-the-mittendorf-williams-rule\">\r\n      <h2 itemprop=\"name\">What\u2019s the Mittendorf-Williams rule?<\/h2>\r\n       <p>\n<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/2342739\">This study<\/a>\u00a0done in 1990 showed that pregnancy lasted an average of 288 days past LMP for Caucasian first-time moms. For Caucasian women who were <em><strong>no<\/strong><strong>t<\/strong> <\/em>first-time moms, their date of delivery averaged 283 days past LMP (3 days after\u00a0Naegele&#8217;s rule predicted). This finding is known as the\u00a0Mittendorf-Williams rule.<\/p>\n<p>While Naegele\u2019s rule is still the most widely used formula for a due date calculator, the Mittendorf-Williams rule is proving to be more accurate. But it&#8217;s a much more complex calculation, taking into account:<\/p>\n<ul>\n<li>Maternal age<\/li>\n<li>Race<\/li>\n<li>Height<\/li>\n<li>Weight<\/li>\n<li>Number of pregnancies<\/li>\n<li>Average luteal phase length<\/li>\n<li>Maternal education<\/li>\n<li>Alcohol during pregnancy<\/li>\n<li><a href=\"https:\/\/mamanatural.com\/coffee-while-pregnant\/\">Coffee during pregnancy<\/a><\/li>\n<\/ul>\n<p>Our <a href=\"\/due-date-calculator\/advanced-due-date\/\">Advanced Due Date Calculator<\/a>\u00a0uses the Mittendorf-Williams rule.<\/p>\n    <\/div> \r\n   \n<hr \/>\n<h2>Related Resources<\/h2>\n<ul>\n<li><a href=\"\/pregnancy-week-by-week\/\">Our FREE Natural Pregnancy Week-By-Week Series<\/a>\u00a0?<\/li>\n<li><a href=\"\/book\/week-by-week-guide-pregnancy-childbirth\/\">My Bestselling Natural Pregnancy Guide<\/a> ?<\/li>\n<li><a href=\"https:\/\/mamanatural.com\/reverse-due-date-calculator\/\"><em>Reverse<\/em> Due Date Calculator<\/a>\u00a0\u25c0\ufe0f<\/li>\n<li><a href=\"\/birth-stories\/\">Natural Birth Stories<\/a>\u00a0??<\/li>\n<li><a href=\"\/baby-names\/\">Baby Name Finder<\/a>\u00a0?<\/li>\n<\/ul>\n<hr \/>\n<h2>Ready to calculate your due date?<\/h2>\n        <div class=\"due-date-calculator panel panel-default\">\r\n\r\n          <div class=\"panel-body\">\r\n\r\n\r\n            <div class=\"due-date-calc-inputs\">\r\n\r\n\r\n              <form class=\"row\">\r\n\r\n\r\n                <div class=\"col-xs-12 col-sm-6 col-md-7 col-lg-7\">\r\n\r\n                  <h4>First day of your <strong>last period:<\/strong><\/h4>\r\n                    <p class=\"hidden-xs hidden-ms no-bottom small form-inline\">\r\n                       Please choose the day your most recent period started.                    <\/p>\r\n                    <div class=\"spacer10 visible-xs visible-ms\"><\/div>\r\n\r\n                <\/div>\r\n\r\n                <div class=\"col-xs-12 col-ms-12 col-sm-6 col-md-5 col-lg-5 clearfix\">\r\n\r\n                  <div class=\"clearfix picker-w-button\">\r\n\r\n\r\n                        \r\n        <div class=\"datepicker-wrap datepicker-wrap-period\" style=\"display:none;\" id=\"datepicker-wrap-period-587753\">\r\n          <input type=\"hidden\" id=\"datepicker-iso-period-587753\" name=\"date\" value=\"2025-12-08\" \/>\r\n          <input type=\"text\" class=\"datepicker\"  id=\"datepicker-period-587753\" \/>\r\n          <span id=\"datepicker-friendly-period-587753\">December 8, 2025<\/span>\r\n        <\/div>\r\n\r\n        <script>\r\n          !function ($) {\r\n\r\n              $('#datepicker-wrap-period-587753').fadeIn('fast');\r\n\r\n            $(function(){\r\n\r\n\r\n              var defaultDateValue=new Date('2025-12-08');\r\n\r\n              $('#datepicker-wrap-period-587753').find('#datepicker-period-587753').datepicker({\r\n                firstDay: 0,\r\n                dateFormat: 'MM d, yy',\r\n                defaultDate : defaultDateValue,\r\n                altField:'#datepicker-iso-period-587753',\r\n                altFormat:'yy-mm-dd',\r\n                onSelect:window.datepicker_select,\r\n                minDate: new Date('2025-04-07'),\r\n                \/\/maxDate: new Date('2026-01-12'),\r\n                }\r\n               );\r\n\r\n            })\r\n          }(window.jQuery)\r\n\r\n        <\/script>\r\n\r\n        \r\n                        <input type=\"hidden\" name=\"mode\" value=\"period\" \/>\r\n                        <button class=\"btn btn-block btn-sm btn-primary\" type=\"submit\"><i class=\"fa fa-chevron-circle-right\"><\/i><\/button>\r\n\r\n                    <\/div>\r\n\r\n                  <div class=\"spacer10\"><\/div>\r\n\r\n                  <p class=\"no-bottom small\">\r\n\r\n                   Average cycle:\r\n                   <select class=\"form-control cycle-dropdown\" name=\"cycle\">          <option value=\"20\" >20 days<\/option>\r\n                              <option value=\"21\" >21 days<\/option>\r\n                              <option value=\"22\" >22 days<\/option>\r\n                              <option value=\"23\" >23 days<\/option>\r\n                              <option value=\"24\" >24 days<\/option>\r\n                              <option value=\"25\" >25 days<\/option>\r\n                              <option value=\"26\" >26 days<\/option>\r\n                              <option value=\"27\" >27 days<\/option>\r\n                              <option value=\"28\"  selected='selected'>28 days<\/option>\r\n                              <option value=\"29\" >29 days<\/option>\r\n                              <option value=\"30\" >30 days<\/option>\r\n                              <option value=\"31\" >31 days<\/option>\r\n                              <option value=\"32\" >32 days<\/option>\r\n                              <option value=\"33\" >33 days<\/option>\r\n                              <option value=\"34\" >34 days<\/option>\r\n                              <option value=\"35\" >35 days<\/option>\r\n                              <option value=\"36\" >36 days<\/option>\r\n                              <option value=\"37\" >37 days<\/option>\r\n                              <option value=\"38\" >38 days<\/option>\r\n                              <option value=\"39\" >39 days<\/option>\r\n                              <option value=\"40\" >40 days<\/option>\r\n                              <option value=\"41\" >41 days<\/option>\r\n                              <option value=\"42\" >42 days<\/option>\r\n                              <option value=\"43\" >43 days<\/option>\r\n                              <option value=\"44\" >44 days<\/option>\r\n                              <option value=\"45\" >45 days<\/option>\r\n                    <\/select>\r\n\r\n                  <\/p>\r\n\r\n                <\/div>\r\n\r\n              <\/form><!-- \/.row -->\r\n\r\n\r\n\r\n              <div class=\"or\"><span>or<\/span><\/div>\r\n\r\n\r\n\r\n\r\n              <form class=\"row\">\r\n\r\n\r\n                <div class=\"col-xs-12 col-sm-6 col-md-7 col-lg-7\">\r\n\r\n                  <h4>Date you <strong>conceived:<\/strong><\/h4>\r\n                    <p class=\"hidden-xs hidden-ms no-bottom small form-inline\">\r\n                       Conception is approximately two days after intercourse.                    <\/p>\r\n                    <div class=\"spacer10 visible-xs visible-ms\"><\/div>\r\n\r\n                <\/div>\r\n\r\n                <div class=\"col-xs-12 col-sm-6 col-md-5 col-lg-5 clearfix\">\r\n\r\n                    <div class=\"clearfix picker-w-button\">\r\n\r\n\r\n                        \r\n        <div class=\"datepicker-wrap datepicker-wrap-conception\" style=\"display:none;\" id=\"datepicker-wrap-conception-1252798\">\r\n          <input type=\"hidden\" id=\"datepicker-iso-conception-1252798\" name=\"date\" value=\"2025-12-08\" \/>\r\n          <input type=\"text\" class=\"datepicker\"  id=\"datepicker-conception-1252798\" \/>\r\n          <span id=\"datepicker-friendly-conception-1252798\">December 8, 2025<\/span>\r\n        <\/div>\r\n\r\n        <script>\r\n          !function ($) {\r\n\r\n              $('#datepicker-wrap-conception-1252798').fadeIn('fast');\r\n\r\n            $(function(){\r\n\r\n\r\n              var defaultDateValue=new Date('2025-12-08');\r\n\r\n              $('#datepicker-wrap-conception-1252798').find('#datepicker-conception-1252798').datepicker({\r\n                firstDay: 0,\r\n                dateFormat: 'MM d, yy',\r\n                defaultDate : defaultDateValue,\r\n                altField:'#datepicker-iso-conception-1252798',\r\n                altFormat:'yy-mm-dd',\r\n                onSelect:window.datepicker_select,\r\n                minDate: new Date('2025-04-07'),\r\n                \/\/maxDate: new Date('2026-01-12'),\r\n                }\r\n               );\r\n\r\n            })\r\n          }(window.jQuery)\r\n\r\n        <\/script>\r\n\r\n        \r\n                        <input type=\"hidden\" name=\"mode\" value=\"conception\" \/>\r\n                        <button class=\"btn btn-block btn-sm btn-primary\" type=\"submit\"><i class=\"fa fa-chevron-circle-right\"><\/i><\/button>\r\n\r\n                    <\/div>\r\n\r\n\r\n\r\n\r\n                <\/div>\r\n\r\n              <\/form><!-- \/.row -->\r\n\r\n\r\n\r\n\r\n\r\n\r\n            <\/div><!-- .due-date-calc-inputs -->\r\n\r\n          <\/div><!-- \/.panel-body -->\r\n          <div class=\"panel-footer \">\r\n\r\n                <div class=\"row\">\r\n\r\n                  <div class=\"col-xs-12 col-ms-10 col-ms-push-1 col-sm-7 col-md-7 col-lg-7\">\r\n                     <h6 class=\"no-bottom\" style=\"margin-top:3px;\">Want a <strong>more accurate<\/strong> calculation? <\/h6>\r\n                    <div class=\"spacer10 visible-xs visible-ms\"><\/div>\r\n                  <\/div>\r\n\r\n                  <div class=\"col-xs-12 col-ms-10 col-ms-push-1 col-sm-5 clearfix\">\r\n\r\n                      <input type=\"hidden\" name=\"mode\" value=\"conception\" \/>\r\n                      <a href=\"\/due-date-calculator\/advanced-due-date\" class=\"btn  btn-sm btn-primary\">Try our Advanced Calculator <i class=\"fa fa-fw fa-chevron-circle-right\"><\/i><\/a>\r\n\r\n                  <\/div>\r\n                <\/div>\r\n\r\n              <\/form><!-- \/.row -->\r\n\r\n          <\/div>\r\n\r\n\r\n        <\/div><!-- \/.panel -->\r\n\r\n        <p class=\"small text-muted text-center\">\r\n\r\n            Already know your due date? <a href=\"\/pregnancy-calendar\/\">Click here<\/a>\r\n        <\/p>\r\n        \n      \n      <div class=\"mamashare mamashare-single-post\">\n        \n                <ul class=\"list-inline ggnoads\">\n          <li><a href=\"https:\/\/www.facebook.com\/sharer\/sharer.php?u=https%3A%2F%2Fwww.mamanatural.com%2Fdue-date-calculator%2F\" class=\"btn 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absolute; left:-9999px;\">\n      ","protected":false},"excerpt":{"rendered":"<p>Find out when baby&#8217;s due and get a personalized pregnancy calendar with our due date calculator.<\/p>\n","protected":false},"author":3,"featured_media":195750,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"template-due-date-calculator.php","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[530],"reviewer":[7218],"class_list":["post-36697","page","type-page","status-publish","has-post-thumbnail","hentry","category-pregnancy","reviewer-maura-winkler"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.0 (Yoast SEO v26.0) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Due Date Calculator \u2014 Amazingly Accurate Pregnancy Calculator<\/title>\n<meta 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