Vitex...has anyone tried? Using? Success?

Nikki
Started AF. Ugh. Dr said, to contact him if I'm not preggers by the end of the year. Bc while yes I'm 35, my sweet surprise turned 1 recently so, I think I'm ok there...but my cycles are all over the place and we've been ttc, now our 4th cycle. Anyone had any success with vitex? Heard some great things and would like to try it.