If your period is regular, this ovulation calculator can help you find out the days you’re most likely to ovulate. It uses the first date of your last menstrual period and the number of days between your periods. The ovulation dates are an estimate. The best time to have sex is a few days before and the day that you ovulate. The more often you have sex during this time, the more likely you are to get pregnant.
If your periods are irregular, there are other ways you can find out when you’re ovulating to help you get pregnant. Talk to your provider.