Pregnancy Conception Calculator

This tool estimates the date of conception based on your expected due date, the date of your last period, or your ultrasound date. It also provides a possible range of days when conception may have occurred, considering that sperm can remain viable for 3-5 days within a woman's body.

What is Conception?

Conception is the moment when a sperm fertilizes an egg. This event usually occurs within a few days after ovulation, typically around the middle of the menstrual cycle. The date of conception can be estimated using different methods such as the due date, the date of the last period, or an ultrasound date.

How is Conception Date Calculated?

There are several methods to estimate your conception date:

Limitations

This is an estimate, as conception can vary depending on factors like cycle length, ovulation timing, and sperm viability. Always consult a healthcare provider for more accurate information.