The First Response One-Step Ovulation Predictor Test predicts the 2 days when you are most likely to become pregnant. Easy-read result line. First Response Easy-Read Ovulation Predictor Test is an easy way to help you find the 2 days when you are most able to become pregnant. It quickly and accurately detects the increase in luteinizing hormone in your urine (LH surge), which normally occurs 24-36 hours before ovulation. Your two most fertile days begin with the LH surge. You are most likely to become pregnant if you have intercourse within 24-36 hours after you detect your LH surge.
First Response One Step Test
