Ovulation Calculator

The ovulation calculator / pregnancy due date calculator will show you your most fertile dates based on your period length and last period date. It will also suggest when your next period is expected to start.

This ovulation date calculator uses commonly recognized "best-guess" methods to help estimate the days you are most likely to ovulate, and hence, have the best chance to conceive. However, there are several more scientific methods to help you pinpoint your actual dates of ovulation. We therefore suggest that you consult with your doctor if you need to be more precise.