All free tools

Due date calculator

Enter the first day of your last period to see your estimated due date, how many weeks pregnant you are, and what is coming up next.

Not sure? Leave it at 28 days.

Your answers stay on your device. Nothing is saved or sent to us.

These tools give general information only. They cannot diagnose a condition and do not replace advice from your prescriber. If you feel very unwell, go to the nearest hospital or call 112.