Well, I felt like I should give a cautionary tale to all you out there. I was taking Yasmin for about 8 months after being diagnosed (finally!) with PCOS when I got a cramping pain in my calf. After a week, I went to my doctor who felt it was a phelibitis and sent me home to do rest/elevation/compression. A few days later, I got chest pain and shortness of breath, went to the ER, and was diagnosed with bilateral pulmonary emboli (blood clots in the lungs). So no more birth control ever for me!
Right now, since I have no other risk factors and no family history, the doctors are attributing it to the Yasmin. I'll do a full clotting workup when I come off the coumadin in 5 months. Not to raise concerns unnecessarily, but in the PE support group I joined, almost every woman who had a PE on BC was taking Yaz/Yasmin.
A few lessons from this. Know that PEs/DVTs are a risk anytime you're taking BC! Take calf pain seriously when you're on the pill and demand a doppler study of your legs if you have it! I'm a nurse and I should have known better but I brushed it off and trusted my doctor. Just another reason of many to look for non-BC treatments for PCOS.
On a brighter note, I found this message board a few weeks before I had my PE. Thanks to all the info here, I asked my doctor to start me on Metformin and she agreed! Today is my second day on Met and I'm crossing my fingers it works!!