Ovulation & Fertility Calculator

Learning more about your body and your menstrual cycle might help you increase chances of getting pregnant. Each menstrual cycle has about six days when you can become pregnant. This is commonly known as the fertile window. Use our ovulation calculator to determine your most fertile periods and your estimated due date if you become pregnant during these dates.

​This ovulation calculator only estimates your fertile window; it cannot reliably predict pregnancy or provide a method of birth control. The calculator and information on this page do not represent medical guidance. Discuss your options for birth control with your doctor or nurse to prepare for pregnancy.

Click here to download the IVF APP for ovulation calculator tool