It is estimated that only about 20-30 percent of women who ovulate will get pregnant each month. If you’re trying to conceive (TTC), you may be wondering if you can increase your chances by knowing when you’re most fertile.

For most women, ovulation occurs approximately 14 days before the start of their next period. This means that if you have a 28-day cycle, you will ovulate around day 14. However, if you have a 35-day cycle, you will ovulate around day 21.