Fertile Days and Ovulation Calendar
This fertility calculator helps women determine their most fertile days and ovulation date to increase the chances of pregnancy. By entering the start date of your last menstrual period and average cycle length, it predicts the optimal window for conception and provides a personalized ovulation calendar.
Ovulation and Fertility Date Estimator
Fertile Window and Ovulation Formula
Fertile window = Ovulation date ± 2 days
This window represents the days with the highest chance of conception.
The Fertile Days and Ovulation Calendar is a useful tool for women trying to conceive. It calculates your ovulation day and highlights the fertile window — the period when you are most likely to get pregnant. This tool uses the standard rule that ovulation occurs about 14 days before the next period. It helps plan for pregnancy by identifying when intercourse is most likely to result in conception.