Conception Calculator

Estimate your conception date based on your due date or the first day of your last menstrual period.

Your Estimated Conception Date

Estimated Conception Date N/A

How the Conception Calculator Works

Our Conception Calculator helps you estimate the date of conception based on the first day of your last menstrual period.

How This Calculator Determines Your Conception Date

  1. Input Your Last Period Date: Enter the first day of your last menstrual period.
  2. Conception Date Estimation: The calculator estimates your conception date to be about two weeks after the start of your last period.