Fertility Q&A

What is Luteinizing Hormone (LH)?

Luteinizing hormone (LH) is released in the follicular phase, just prior to ovulation. It plays a pivotal role in the female reproductive system, particularly in regulating ovulation. LH is respon...

What is an OPK or LH test strip?

An ovulation predictor kit (OPK) measures luteinizing hormone (LH) present in your urine.

What can an OPK tell me?

An OPK can tell you that there is LH in your urine. That means that your body is gearing up to ovulate. An OPK can only tell if you are likely to ovulate, not that you have ovulated.