Understanding your menstrual cycle and ovulation is helpful when you’re trying to conceive. Ovulation happens 14 days before your menstrual cycle begins, and the optimal time to conceive is the day of or the day before ovulation. Fortunately, many free apps and resources are available to help track this information. Try using this ovulation calculator to help predict your most fertile days and increase your chances of conception. Simply input the first day of your last period and the length of your cycle. Browse all of our conception and fertility resources, and don’t hesitate to reach out to your healthcare provider if you have questions or need support with your fertility.