Tool 05 · Trying
Ovulation Calculator
Estimate your fertile window from cycle length and last period. Predicts ovulation day, the 6-day fertile window, and the best days to try. Stays on your device.
The math, not a diagnosis.
Cycle math is a useful estimate, but it's not ovulation testing. If you've been trying for 12 months (or 6 months if you're over 35), talk to your provider.
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