Vitex help!!!!

Brittany
I recently found out that I have PCOS ? I'm 25 and my so and I have been TTC. My periods are super abnormal and I've read a lot of positive reviews online about vitex. I haven't had a 
Period since September 9th and I've been taking vitex about 5 weeks now. Has anyone taken them? Am I supposed to start? Ive tested but I know it'll be negative and it kills me :( can anyone give me some advice!