Cd 53

So I'm on CD 53 and still no sign of af and ive had 3 bfn. i just want something to give soon. Me and my DH have been ttc for over a year now. My OB always wants to just put me on birth control and forget i have pcos. I was diagnosed back in February and every since its just been awful. Idk what to do. Ive been on metformin and recently came off of it due to it making me sick, back in August my OB put me on Provera but no Clomid. Its like he doesnt understand I'm TTC. I am overweight but I feel like he doesnt listen to me. Any Advice?