Clomid/PCOS

Hey ladies, I'm 24 and have pcos, I rarely ever ovulate, so I don't have periods,I've been ttc for 2 years now. I am also overweight. I've been taking clomid since early last year, about 4 rounds, February, March, April, and this past month, I took my last dose Tuesday afternoon. The first two cycles I took 50mg, which didn't work, the last cycle and this time I took provera to start af and 100mg of clomid, which last time I ovulated but no pregnancy, I also had hot flashes, nausea, and dizziness. I'm really hoping this cycle works! My husband is really looking forward to this also, we've been trying to some time now, and all we get is disappointment! If this doesn't work, I really think I might lose hope! Anyone have any luck or success stories with pcos and clomid!? I would love to hear, maybe it will give me some hope!