Metformin, Provera and Clomid.

So apperently I don't ovulate on my own and my hormones are all out of wack. We have been TTC for about 1 year now. I just recently went to the doctor. They recommended the medication above I'm so scared it's not gonna work. Is there any one who has taken these meds. Any advise you can give me. Also I have always had acne but I feel the Provera is making it worse. Having a baby is worth a little acne but it still sucks. I would appreciate any advise. :)