Maca vs. Vitex

Toni
So I am 31, cancer survivor (head and neck), who has very really had a regular period. Irregular periods run in my family, but all the women have had babies. 
I'm looking into any vitamins or herbal supplements that will help my hormones and or my nutritional health. I have heard of and bought Maca and Vitex. 
I haven't seen anything bad about Maca, but I have heard different things about Vitex.
What are your opinions? Any stories... do I take them one at a time?