tpdt, have uou seen an RE about your PCOS yet? If you plan on doing "natural" for a while, I recommend upping your B complex vitamins too. They should help normalize your cycle on top of the vitex.
If you've been trying for a long time (and a year is definitely enough to qualify), I really recommend talking to your doctor about starting you on a clomid and/or metformin/guafensin medication regimen. My friends with PCOS had a LOT of luck with them.
As for me, my SPD is worse than it's been so far. I can't stand the pain anymore! I can't believe I have 2 more months of feeling like this.
On a brighter note, here's my 31 week belly! (I LOVE belly pics!)