孕周计算器
根据末次月经第一天查看当前孕周、孕期阶段和预产期。
在您的浏览器中运行。您的文件不会离开设备。 了解如何验证
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使用方法
- 1填写各项
输入数字或选择所需选项。
- 2查看结果
更改任何值时，答案会立即更新。
- 3使用结果
复制结果或记下来。不会向任何地方发送任何内容。
About this tool
Enter the first day of your last menstrual period. The calculator shows how many weeks and days pregnant you are, the trimester, the expected due date (280 days from that date) and the days left. It is an estimate; an ultrasound can adjust the dates.
How pregnancy weeks are counted
Pregnancy is counted from the first day of the last menstrual period, so you are about two weeks pregnant at conception. A full term is about 40 weeks, or 280 days.
Trimesters
The first trimester ends at week 13, the second at week 27 and the third runs to birth.
Please note
This is for general information only and is not medical advice. Your doctor will confirm dates with a scan.
获得最佳结果的提示
在相信结果之前先检查每一个输入项，因为一个错误的数字就会改变整个答案。请使用工资单、账单、证书或合同上的准确数字，并记下计算日期。税率、门槛和规则会不时变化，因此对于税费和法律事务，请将结果视为估算，并与本页注明的官方来源核对。您可以尝试任意多个方案；不会保存或发送任何内容，刷新页面会清空输入。
要点
- 分类: 日常工具
- 在浏览器中运行，无需注册，无需上传。
- 您输入的信息保留在设备上。
- 提供多种语言。
- 内容最后审核日期:
常见问题
From which date is pregnancy counted?
From the first day of the last menstrual period.
Is the due date exact?
No. Only a small share of babies arrive on the due date.
What if my cycle is irregular?
Dates can be off. Ask your doctor for a scan-based date.
Is the date stored?
No.