Enter the first day of your last period along with your typical cycle length, and this pregnancy ovulation calculator estimates your ovulation date and fertile window, the days each cycle when conception is most likely.
Pregnancy Ovulation Calculator
Estimate your upcoming fertile window, ovulation date, and multi-cycle forecast.
3-Month Fertile Window Forecast
| Cycle | Fertile Window | Estimated Ovulation | Expected Due Date |
|---|
Since cycle length can vary month to month, it helps to understand what this estimate can and can’t tell you. Our article on tracking your most fertile days covers how to combine this estimate with other fertility signs for a clearer picture.
Once you know your fertile window, our pregnancy conception calculator and pregnancy due date calculator can help you plan the timeline ahead.