Pregnancy weeks calculator
Follow your pregnancy week by week without apps or sign-ups.
Everything happens in your browser: your files are never uploaded to a server.
Trimester
Estimated due date
Weeks to go
Of pregnancy
A guide only. Your doctor may adjust the date from the ultrasound.
How to use it
- Enter the first day of your last period.
- Change the check date if you like.
- See weeks, trimester and due date.
FAQ
How is it counted?
From the first day of the last period (Naegele’s rule): 40 weeks in total.
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