Hi there!
I'm having high prolactine 40.2 ng/ml (I'm in Europe, the measurement might be different), the doc prescribed me Dostinex, which lowered it down to the extreme: at some point i had 3 ng/ml, way below the normal values (4.79 - 23.30).
I took the pill for 6 months, had only a cycle in this time.
I was told it is a cause of infertility, maybe not my specific cause.
Have you talked about it to your doc?