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预产期计算器

想知道你的孩子什么时候出生吗?使用我们的怀孕计算器来计算你怀孕了几周,以及你的日历上的预产期。

Mumsnet的总部|最后更新,2021年7月15日

Want to know when your baby is due? Use our\u00a0pregnancy calculator\u00a0to work out how many weeks pregnant you are and the due date to mark in your calendar.<\/p>","value":"

Want to know when your baby is due? Use our\u00a0pregnancy calculator\u00a0to work out how many weeks pregnant you are and the due date to mark in your calendar.<\/p>"},{"meta_id":434597,"post_id":12142,"meta_key":"_standfirst","meta_value":"field_5fd38e9e96b76","value":"field_5fd38e9e96b76"},{"meta_id":434598,"post_id":12142,"meta_key":"content_author","meta_value":"8069","value":"8069"},{"meta_id":434599,"post_id":12142,"meta_key":"_content_author","meta_value":"field_5fd379f22a693","value":"field_5fd379f22a693"},{"meta_id":434600,"post_id":12142,"meta_key":"hero_image","meta_value":"12162","value":"12162"},{"meta_id":434601,"post_id":12142,"meta_key":"_hero_image","meta_value":"field_6006f13821768","value":"field_6006f13821768"},{"meta_id":434604,"post_id":12142,"meta_key":"body","meta_value":"a:3:{i:0;s:7:\"content\";i:1;s:21:\"tools-and-calculators\";i:2;s:7:\"content\";}","value":["content","tools-and-calculators","content"]},{"meta_id":434605,"post_id":12142,"meta_key":"_body","meta_value":"field_5ff5e30b00b34","value":"field_5ff5e30b00b34"},{"meta_id":434606,"post_id":12142,"meta_key":"default_hub","meta_value":"8060","value":"8060"},{"meta_id":434607,"post_id":12142,"meta_key":"_default_hub","meta_value":"field_5fd379f22a5f0","value":"field_5fd379f22a5f0"},{"meta_id":434608,"post_id":12142,"meta_key":"hub_data_hub_image","meta_value":"","value":""},{"meta_id":434609,"post_id":12142,"meta_key":"_hub_data_hub_image","meta_value":"field_5ff46fa656d18","value":"field_5ff46fa656d18"},{"meta_id":434610,"post_id":12142,"meta_key":"hub_data_hub_title","meta_value":"","value":""},{"meta_id":434611,"post_id":12142,"meta_key":"_hub_data_hub_title","meta_value":"field_5ff847a9e8dce","value":"field_5ff847a9e8dce"},{"meta_id":434612,"post_id":12142,"meta_key":"hub_data_hub_teaser_text","meta_value":"","value":""},{"meta_id":434613,"post_id":12142,"meta_key":"_hub_data_hub_teaser_text","meta_value":"field_5ff8686325fd2","value":"field_5ff8686325fd2"},{"meta_id":434614,"post_id":12142,"meta_key":"hub_data","meta_value":"","value":""},{"meta_id":434615,"post_id":12142,"meta_key":"_hub_data","meta_value":"field_5fd37e2cba3bd","value":"field_5fd37e2cba3bd"},{"meta_id":434616,"post_id":12142,"meta_key":"manual_related_links","meta_value":"","value":""},{"meta_id":434617,"post_id":12142,"meta_key":"_manual_related_links","meta_value":"field_5fd37f6aba3c0","value":"field_5fd37f6aba3c0"},{"meta_id":434618,"post_id":12142,"meta_key":"sponsor","meta_value":"","value":""},{"meta_id":434619,"post_id":12142,"meta_key":"_sponsor","meta_value":"field_5fd3805f79998","value":"field_5fd3805f79998"},{"meta_id":434654,"post_id":12142,"meta_key":"_expiration-date-status","meta_value":"saved","value":"saved"},{"meta_id":434820,"post_id":12142,"meta_key":"_wp_old_slug","meta_value":"pregnancy-due-date-calculator","value":"pregnancy-due-date-calculator"},{"meta_id":435136,"post_id":12142,"meta_key":"body_2_content","meta_value":"

How accurate are due dates?<\/h2>

At your\u00a012-week scan<\/a>\u00a0(which can happen any time between 10 and 14 weeks), an ultrasound will be used to measure your baby and determine the stage of pregnancy you're at. The big date will then be confirmed with greater accuracy.<\/p>

Remember, this date is not cast iron, but more an estimated due date at this stage. In fact, fewer than 5% of babies are born on the predicted day itself, but at least it gives you a rough deadline for buying the\u00a0pushchair<\/a> \/ painting the nursery \/ choosing a name<\/a>.<\/p>

How many weeks pregnant are you?<\/h2>

Based on the date your baby is due and\/or the first day of your last period, you can count the number of weeks to see\u00a0how pregnant you are<\/a>. Once you know the magic number, find out what you can expect in the weeks ahead, using our\u00a0pregnancy calendar<\/a>.<\/p>

6 weeks pregnant<\/a>\u00a0|\u00a07 weeks pregnant<\/a>\u00a0|\u00a08 weeks pregnant<\/a>\u00a0|\u00a09 weeks pregnant<\/a>\u00a0|\u00a010 weeks<\/a><\/p>

Keep track of how your baby is developing week by week, the changes happening to your body and what\u00a0appointments<\/a>\u00a0you'll have, as well as looking ahead to\u00a0giving birth<\/a>\u00a0and\u00a0life with a newborn\u00a0(we know that part seems a long way off right now). In the meantime, chat with other mums-to-be who are at the same stage as you, by joining a\u00a0birth club<\/a>.<\/p>","value":"

How accurate are due dates?<\/h2>

At your\u00a012-week scan<\/a>\u00a0(which can happen any time between 10 and 14 weeks), an ultrasound will be used to measure your baby and determine the stage of pregnancy you're at. The big date will then be confirmed with greater accuracy.<\/p>

Remember, this date is not cast iron, but more an estimated due date at this stage. In fact, fewer than 5% of babies are born on the predicted day itself, but at least it gives you a rough deadline for buying the\u00a0pushchair<\/a> \/ painting the nursery \/ choosing a name<\/a>.<\/p>

How many weeks pregnant are you?<\/h2>

Based on the date your baby is due and\/or the first day of your last period, you can count the number of weeks to see\u00a0how pregnant you are<\/a>. Once you know the magic number, find out what you can expect in the weeks ahead, using our\u00a0pregnancy calendar<\/a>.<\/p>

6 weeks pregnant<\/a>\u00a0|\u00a07 weeks pregnant<\/a>\u00a0|\u00a08 weeks pregnant<\/a>\u00a0|\u00a09 weeks pregnant<\/a>\u00a0|\u00a010 weeks<\/a><\/p>

Keep track of how your baby is developing week by week, the changes happening to your body and what\u00a0appointments<\/a>\u00a0you'll have, as well as looking ahead to\u00a0giving birth<\/a>\u00a0and\u00a0life with a newborn\u00a0(we know that part seems a long way off right now). In the meantime, chat with other mums-to-be who are at the same stage as you, by joining a\u00a0birth club<\/a>.<\/p>"},{"meta_id":435137,"post_id":12142,"meta_key":"_body_2_content","meta_value":"field_5ff5e32e00b35","value":"field_5ff5e32e00b35"},{"meta_id":739133,"post_id":12142,"meta_key":"_wp_old_slug","meta_value":"articles-due-date-calculator","value":"articles-due-date-calculator"},{"meta_id":764679,"post_id":12142,"meta_key":"body_0_content","meta_value":"

Calculate your baby's due date<\/h2>

By now you've probably done a pregnancy test<\/a> (or ten) and started noticing the\u00a0early signs of pregnancy<\/a>\u00a0\u2013 but how do you know how far along you are?<\/p>

Using the first day of your last period, and your average menstrual cycle (this is the number of days from the start of one period to the day before the next one), it's possible to estimate the date you conceived. Pregnancy is counted as being 40 weeks long, so your due date is calculated at 280 days from conception. Don't worry \u2013 our tool will do those sums for you, just fill in your info below and the results will show on our calendar.<\/p>","value":"

Calculate your baby's due date<\/h2>

By now you've probably done a pregnancy test<\/a> (or ten) and started noticing the\u00a0early signs of pregnancy<\/a>\u00a0\u2013 but how do you know how far along you are?<\/p>

Using the first day of your last period, and your average menstrual cycle (this is the number of days from the start of one period to the day before the next one), it's possible to estimate the date you conceived. Pregnancy is counted as being 40 weeks long, so your due date is calculated at 280 days from conception. Don't worry \u2013 our tool will do those sums for you, just fill in your info below and the results will show on our calendar.<\/p>"},{"meta_id":764680,"post_id":12142,"meta_key":"_body_0_content","meta_value":"field_5ff5e32e00b35","value":"field_5ff5e32e00b35"},{"meta_id":897362,"post_id":12142,"meta_key":"hide_hero_image","meta_value":"0","value":"0"},{"meta_id":897363,"post_id":12142,"meta_key":"_hide_hero_image","meta_value":"field_60d1cf7781284","value":"field_60d1cf7781284"},{"meta_id":897364,"post_id":12142,"meta_key":"body_1_type","meta_value":"due-date","value":"due-date"},{"meta_id":897365,"post_id":12142,"meta_key":"_body_1_type","meta_value":"field_60bf37f7f6ce0","value":"field_60bf37f7f6ce0"}],"taxonomies":[{"term_taxonomy_id":65,"term_id":65,"taxonomy":"category","description":"","parent":0,"count":77,"pivot":{"object_id":12142,"term_taxonomy_id":65},"term":{"term_id":65,"name":"Pregnancy","slug":"pregnancy","term_group":0}},{"term_taxonomy_id":84,"term_id":84,"taxonomy":"category","description":"","parent":0,"count":30,"pivot":{"object_id":12142,"term_taxonomy_id":84},"term":{"term_id":84,"name":"Getting Pregnant","slug":"getting-pregnant","term_group":0}}],"thumbnail":null}">

女人在日历上写字

计算宝宝的预产期

现在你可能已经做了妊娠检查(或十)开始注意到妊娠早期症状但是你怎么知道你已经走了多远?

根据你最后一次月经的第一天和你的平均月经周期(这是从一次月经开始到下一次之前的天数),有可能估计出你怀孕的日期。怀孕是40周,所以你的预产期是280天。不用担心-我们的工具会为您做这些计算,只需在下面填写您的信息,结果将显示在我们的日历上。

预产期计算器

你要有孩子了(好哇!)但具体是什么时候?只要在我们的预产期计算器中输入你的详细信息,我们就会做剩下的事情。

输入上次月经开始的日期

你的月经周期多长?

截止日期有多准确?

在你12周的扫描(这可能发生在10到14周之间的任何时间),超声波会用来测量你的宝宝,并确定你的怀孕阶段。这一重要日期将得到更准确的确认。

记住,这个日期不是铁定的,而是这个阶段的一个估计的到期日期。事实上,只有不到5%的婴儿在预测的日子出生,但至少它给了你一个购买的大致期限折叠式婴儿车/粉刷育儿室选择一个名字

你怀孕几周了?

根据宝宝的预产期和/或最后一次月经的第一天,你可以数出几周你怀孕了多少.一旦你知道了这个神奇的数字,用我们的狗万2017

怀孕6周|怀孕7周|怀孕8周|怀孕9周|10周

记录下你的宝宝每周的发育情况,你的身体发生了什么变化任命你会有,也会展望未来还有新生儿的生活(我们知道这部分现在看来似乎还有很长的路要走)。与此同时,和其他和你处于同一阶段的准妈妈聊天,加入一个出生俱乐部

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