Ovulation calculator

Knowing the days you are most likely to be fertile can increase your chance of getting pregnant. The typical menstrual cycle is 28 days long, but each woman is different. There are about 6 days during each menstrual cycle when you can get pregnant. This is called your fertile window. Use the calculator to see which days you are most likely to be fertile.

Please note that this is a basic calculation and does not take into account various factors that can affect ovulation.This calculator provides an estimate of your fertile window and is not a guarantee of pregnancy or of birth control. The calculator and information on this website are not medical advice. It's always a good idea to consult with a healthcare professional to plan for pregnancy and find birth control that works for you.