Vitex to get pregnant/PCOS

Hey y'all! Me and my husband have been trying to have a baby for 4 years. I have continuous chemical pregnancies, I've tried Geritol, it didn't do anything but make me gain weight. I also have a cyst in my right ovary so I'm guessing that's why I haven't gotten officially pregnant yet. So I read about Vitex chaste berry and decided to try this and see where it goes. I pray I dont get disappointed again 😢 . Has anyone tried Vitex and conceived? Or know anybody who has?