Hmmmmm, well we had a girl, but I would say its more coincidence than because I have PCOS.
We had IUI (using Clomid), knew when I ovulated so the little swimmers weren't hanging around waiting, plus I wasn't overweight when I got pregnant (no heartburn etc) not that it matters as the swimmers bypassed anything acidic and went straight to the uterus. Plus we used donor sperm, and that means the donor would have held of from sex for at least a few days before donating. LOL. But for a natural cycle, then myson your theory sounds plausible (hehehe, thats for the phrase mythbusters!).