Health & Lifestyle
Ovulation
Calculator
Find your peak fertility. Understanding your ovulation cycle is key to planning a pregnancy or simply gaining better insight into your hormonal health.
Ovulation Tool
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Estimated Ovulation Date
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6-Day Fertile Window
What Is Ovulation?
Ovulation is the part of the menstrual cycle when an egg is released from the ovary. For people with a standard 28-day cycle, this usually happens around day 14. Once released, the egg lives for 12 to 24 hours.
The Fertile Window
Your fertile window includes the day of ovulation and the 5 days leading up to it. This is because sperm can survive inside the female reproductive tract for up to 5 days. Predicting this window accurately significantly increases the chances of conception.