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Pregnancy & Due Date Calculator

Calculate your exact pregnancy week, estimated due date, current trimester, and fetal development milestones.

A full-term human pregnancy lasts 40 weeks (280 days) from the first day of the last menstrual period (LMP). It is divided into 3 trimesters: 1st (weeks 1–13), 2nd (weeks 14–27), and 3rd (weeks 28–40+). Full term is officially reached at week 37.

Frequently Asked Questions

What does the Pregnancy & Due Date Calculator calculate?

Calculate your exact pregnancy week, estimated due date, current trimester, and fetal development milestones. It belongs to the Health category and supports key terms such as Pregnancy & Due Date Calculator, Health, pregnancy, due date, gestational age, trimester.

Is the Pregnancy & Due Date Calculator accurate and private?

Yes. All formulas run locally in your browser using high-precision Decimal.js arithmetic with zero server data storage.

Can I export or share results from the Pregnancy & Due Date Calculator?

Yes. You can copy shareable result links with URL parameters, export data, or embed the calculator directly on your website.

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Pregnancy & Due Date Calculator · Health · pregnancy · due date · gestational age · trimester · baby · conception · ovulation · ultrasound · health · family · הריון · תאריך לידה · שבועות הריון