I have started a no carb diet and only drink water. BUT... I have PCOS and had never had regular periods until Dec 2011. I do not know what completely changed it except I was taking a prenatal, folic acid, DHA, and a woman's multivitamin. I also started drinking herbal teas like spearmint tea, green tea, and some raspberry tea I got at Walgreen's that helps with women's fertility
I hope this helps. I am not completely sure about Vitex. I tried it back a couple of years ago and never really say any improvements with it. I have heard it works a lot like Clomid and should not be taken with Soy Iso.
GOOD LUCK and keep us posted! I do know that i can take at least 12 weeks to see any improvements with Vitex.