Hi, it sounds like you have been through alot! I know how you feel I am 5'2 and 142 lbs. I never weighed this much before, but between the PCOS and the meds. I think it may have contributed to my weight gain!
It sounds to me they need to try other meds to get you to ovulate. I was diagnosed in Aug. 08, but apparently I have had it for a very very long time!!! I concieved my son at 19 without trying! Now I have been ttc for about a year... they finally put me on clomid which made me ovulate but then they had to add hcg shot to make my body release the eggs! Now I am going on Monday for a 6 week u/s to see if my little bean is where it is suppose to be!
After all of this babbling I have done, I hope it helped to a little, or maybe just give you some hope!
Good luck!
P.S. I forgot to mention when I didn't take the bc pills I never had a period on my own, they were about once a year! So don't give up, just get them to try something different!