Time for some blood tests?

Have you had any recent signs of ovulation? It may be delayed or you're having a long, annovulatory cycle. Or you are pregnant but HPTs are working for you, which happens for some women.

I have a friend who has done IVf a few times. Her hormones are all over the place and her cycle can be over 80 days. She recently found out she had abnormally high prolactin levels. I'm not saying that's what you have, I have no idea. Just saying, maybe get some tests.