Any luck with clomid?!

Hey ladies. I have PCOS and my Husband and I have been TTC since January. My ob said if we hadn't had any luck in 6 months (SO and I decided on giving it a shot for 1 year) that we would "re-evaluate". I've been on 500mg Metformin twice daily, with folic and prenatals since January. The reevaluation is to try adding in Clomid. I'm terrified. Mostly because of the chance of multiples. I know that makes me sound a bit crazy, but it's scary to think that we could go from being the cool aunt and uncle to parents of multiple babies! But I wanna be a mommy so bad I think I'm ready to give it a shot. Has anyone had any success and or multiple babies?! I'd love to hear your stories!