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Ovulation & Fertile Window
First day of last period
Average cycle length (days)
Most fertile, likely ovulation
Thu, Nov 5
Fertile window:
Sat, Oct 31 → Fri, Nov 6
(about 6 days).
Cycle
Fertile window
Ovulation
This cycle
Sat, Oct 31 – Fri, Nov 6
Thu, Nov 5
+1 cycle
Sat, Nov 28 – Fri, Dec 4
Thu, Dec 3
+2 cycles
Sat, Dec 26 – Fri, Jan 1
Thu, Dec 31
✨ 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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