🌸Ovulation Calculator
Typical: 21–35 days
The ovulation calculator predicts when ovulation is most likely to occur and identifies the fertile window — the days when conception is possible. Ovulation typically occurs 14 days before the next expected period. The fertile window spans 5 days before ovulation, the day of ovulation, and 1 day after, as sperm can survive up to 5 days in the reproductive tract.
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Pro Tip
For accurate prediction, track basal body temperature (BBT) and cervical mucus changes. BBT rises 0.2–0.5°C after ovulation. An LH surge (detected by ovulation predictor kits) typically precedes ovulation by 24–36 hours.
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