When Did I Conceive if My Due Date Is September 21?

A calculator that calculates the day of conception based on due date.

If you do not know when you will give birth and you know the date of your last period, use the duea date calculator.

You conceived at December 30, 2023
You are 26 weeks and 3 days pregnant.
First day of Last Month Period (L.M.P.) was December 16, 2023

Nearest calculation of days of conception based on day of birth