What is an Ovulation Predictor Test Kit (OPK)? What does it tell me?
An OPK is an ovulation test that looks for luteinizing hormone (LH). Just prior to ovulation, women experience a short surge where the LH level rises to a higher level. The OPK will help you determine this surge and help you predict when you will ovulate.
We thought you might find these product(s) useful: