When Did I Conceive if I am 21 Weeks Pregnant?

If I am 21 weeks pregnant, then when did I conceive?

The best way to figure out the date of conception is to subtract 21 weeks from the current date.

So if today is September 6, then I conceived occurred on April 12.

You conceived at:
April 12, 2025
First day of Last Month Period (L.M.P.) : March 29, 2025

Check the date of conception for other weeks.

The closest calculation of conceive day

Nearest calculation of days of conception based on day of birth