Pregnancy Conception Calculator

Pregnancy Conception Calculator helps you estimate the likely date of conception based on your due date, ultrasound data, or the first day of your last menstrual period. In addition, it calculates the most probable intercourse dates that could have led to conception, giving you a clearer understanding of your pregnancy timeline and fertility window.

Conception usually occurs about 11–21 days after the first day of a woman’s last menstrual period, but the exact date can be difficult to determine since ovulation varies. The Pregnancy Conception Calculator helps estimate the most probable conception dates, as well as the likely days of intercourse that may have led to pregnancy.

In addition to the last menstrual period method, conception can also be estimated using due dates provided by healthcare providers or by early ultrasounds, which give a more accurate picture of gestational age.