Ovulation Calculator
Estimate your fertile window, ovulation date, and next 3 cycles.
28 days
21 days35 days
5 days
2 days8 days
Current Cycle
Next Expected Period
Wed, Oct 28, 2026
in 21 days
Estimated Ovulation
Wed, Oct 14, 2026
Cycle day 14
Fertile Window
Oct 9 – Oct 14
6 days (5 before + ovulation)
Period Days
Sep 30 – Oct 4
5 days
Calendar View
September 2026
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Period
Fertile Window
Ovulation Day
Today
Next 3 Cycles Projected
Cycle 1Starts Sep 30
Period
Sep 30–Oct 4
Fertile
Oct 9–Oct 14
Ovulation
Oct 14
Cycle 2Starts Oct 28
Period
Oct 28–Nov 1
Fertile
Nov 6–Nov 11
Ovulation
Nov 11
Cycle 3Starts Nov 25
Period
Nov 25–Nov 29
Fertile
Dec 4–Dec 9
Ovulation
Dec 9
Disclaimer: This is an estimate only. Ovulation timing varies and is affected by stress, illness, and other factors. This tool is not a contraceptive and should not replace medical advice. Consult a healthcare provider for family planning guidance.