Fertility Window Calculator
Estimate your fertile days to help with conception
Your Fertile Window
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Fertility & Cycle Reference
Ovulation Day
Occurs ~14 days before your next period starts.
Fertile Window
5 days before and 1 day after ovulation are most fertile.
Conception Chances
Highest during the 2 days before ovulation.
Cycle Tracking
Helpful for fertility planning and health awareness.