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Ovulation & Fertile Window
First day of last period
Average cycle length (days)
Most fertile, likely ovulation
Tue, Nov 10
Fertile window:
Thu, Nov 5 → Wed, Nov 11
(about 6 days).
Cycle
Fertile window
Ovulation
This cycle
Thu, Nov 5 – Wed, Nov 11
Tue, Nov 10
+1 cycle
Thu, Dec 3 – Wed, Dec 9
Tue, Dec 8
+2 cycles
Thu, Dec 31 – Wed, Jan 6
Tue, Jan 5
✨ Live · Calendar estimate (ovulation ≈ next period − 14 days). Not a contraceptive method. Cycles vary. Ovulation kits or tracking are more precise.
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