Pregnancy Tools

Due Date Calculator

Three ways to estimate your due date, with a week-by-week timeline so you know what's coming.

How do you want to estimate your due date?

Last menstrual period (LMP)Conception dateI already have a due date

First day of last period

⚠️ Safety note

Due dates are estimates. Only ~5% of babies arrive on their estimated date. Most arrive within two weeks before or after.

Pick an input above to see your timeline.