Track your menstrual cycle to find your most fertile days. Calculate ovulation date, fertile window, and next period based on your cycle length.
The first day of your most recent menstrual period
Most women have cycles between 21-35 days. Average is 28 days.
This is your most fertile day of the cycle.
Ovulation Date
Feb 2
Cycle day 14
Fertile Window
Jan 28 - Feb 3
7 days
Next Period
Feb 16
in 14 days
15
Cycle Day
28
Cycle Length
14
Ovulation Day
7
Fertile Days
Ovulation occurs when an egg is released from the ovary, typically around day 14 of a 28-day cycle. The fertile window includes the 5 days before ovulation, ovulation day, and 1 day after - this is when pregnancy is most likely to occur.
This calculator provides estimates based on average cycle patterns. Actual ovulation can vary. For medical advice or if you're having difficulty conceiving, please consult a healthcare provider.