Hi I Am Currently Diagnosed With PCOS And My Husband

Hi I am currently diagnosed with PCOS and my husband and I are trying to conceive. I've been on Metformin and it's making me bleed but the bleeding is a pinkish color and I've been bleeding nonstop so I would like to know when is the best time to have sex if I am bleeding constantly and how long will it take to get pregnant. Also, how do I know when I ovulate