Ovulation calculator

If you’re trying to fall pregnant, the timing of when you and your partner have intercourse is critical. Our online ovulation calculator can help you understand your fertile window.

Your fertile window refers to the most fertile days in your menstrual cycle which give you the highest chance of conceiving. The most fertile days in your cycle are the days leading up to ovulation, before the egg is released from the ovary. For this reason, we recommend that couples have sexual intercourse every two days throughout the fertile window.