Predict your peak fertile window and plan your cycle with medical-grade accuracy
Your fertile window includes the day of ovulation and the 5 days leading up to it. Sperm can live inside the female body for up to 5 days ensuring survival for fertilization.
Ovulation is the release of an egg from the ovary. For women with a regular 28-day cycle, this typically happens around 14 days before the start of the next period.