MyMonthlyCycles Ovulation Calculator
Creates a complete ovulation calendar, forecasting when you'll ovulate and your fertile days over the next several (you select how many) cycles.
If you're period tracking at MyMonthlyCycles, it's a breeze to use: your vital cycle stats auto-fill into the criteria screen! Tap & Plan...
If your cycle varies by a few days, check out the Advanced Ovulation Calculator at our WhenMyBaby.com, which forecasts your entire fertility window.