Your best chances of getting pregnant are when you're ovulating. This includes a few days before and after your egg is released. Ovulation generally occurs 14 days before the start of your next menstrual period, but everyone is different, and predicting when you ovulate could get a little tricky.
First, you need to determine when your menstrual period begins. The first day of a menstrual cycle is considered the day that your period starts. The last day of your cycle is the last day before