Fertility Window Predictor
Identify your most fertile days to maximize your chances of conception.
Peak Fertility Date
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This is your estimated day of ovulation.
Fertile Window
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Having intercourse during these days gives you the highest chance of pregnancy.
Understanding Your Fertility
Your "fertile window" is the 6-day interval ending on the day of ovulation. Pregnancy is most likely to occur with intercourse within the 3 days leading up to ovulation. This calculator estimates these dates based on your average cycle length.