Use our ovulation calculator. Increase your chances of getting pregnant by finding out when you’re likely to ovulate.
Enter the first day of your last period and how long your cycle usually lasts (anywhere from 20 to 45 days) and we will tell you your next fertile period.
The ovulation calculator provides approximate dates only and assumes a regular menstrual cycle. If your menstrual cycles are irregular, you may have trouble pinpointing your day of ovulation based on the calendar alone.