Ovulation prediction kits are easy-to-use urine test kits that you can buy without a prescription to help determine when a woman is about to ovulate.

About 12 to 14 days before a menstrual period, the brain releases its supply of luteinizing hormone (LH). This is called the LH surge and can be detected in your urine. The LH surge happens about 24 to 36 hours before an egg is released and triggers the egg’s release from the ovary. You are fertile around the time the egg is released. Generally, you should have intercourse the day of, and the day following, the color change of the predictor kit.

Name if kits include: Ovuquick 1 step, Conceive, Q test, Clearplan Easy, Assure, and First Response.

Be sure to carefully follow the directions from the kit you are using. It is best to test your urine in the morning after you have already urinated one time. You should begin testing your urine on the 10^th day of your menstrual cycle unless your doctor/nurse practitioner tells you to start on a different day.