How can I determine my “fertile” period?

11 Jan 2014 by Rotunda - The Center for Human Reproduction

Your fertile period is the time during which having sex could lead to a pregnancy. This is the 4-6 days prior to ovulation ( release of a mature egg from the ovary). Women normally ovulate 14 days prior to the date of the next menstrual period. If you are mathematically challenged, you can use this online ovulation calendar.