Find out when you're most likely to ovulate, when your fertile window opens and closes, and where you are in your cycle right now. Whether you're trying to conceive or just curious about your body, here's what the numbers say.
You can only conceive in a short window each cycle. Sperm can survive up to 5 days inside the body, which is why the fertile window starts several days before ovulation. The egg only survives 12–24 hours after release.
Signs of ovulation
Natural signs include a change in cervical mucus (clear and stretchy, like raw egg white), a slight rise in basal body temperature, and sometimes a brief one-sided twinge called mittelschmerz. Tracking these alongside date predictions gives a more complete picture.