Vitex Agnus castus anyone tried?

Jazz
Hi. I've been ttc for about 8 months. I have a 3 yr old and a 23 yr old and I am 40. I usually get pregnant straight away but think age not on my side lol. I'm ovulating tho. I've been on Agnus castus for a few weeks now as read a lot of good things. Anyone else tried it and had any success ? Thanks ? xx