Need some advice please

Hey ladies. Been ttc for a while but this is the second month with glow. Right around ovulation I started taking vitex. It's supposed to help your progesterone levels and help you concieve. My period is 4 days away and I have so many symptoms. I have cramps, light nausea, Sore breasts on and off, and I've been very moody. I just do not want to get my hopes up because what if the vitex is causing all of this. I've only been on it for about 2 weeks and I only take on capsule (400mg) a day. Have any of you ladies taken vitex and had this happen or do you guys think this could finally be my month. Thank you so much!