Does anyone know when you should take vitex and how much? I started taking it on day 10 of my cycle in an attempt to shorten the time taken to ovulate from 28 days and lengthen my LP from 9 days. I am now on day 21 and no signs of ovulation at all. I have read online that you should take vitex after you ovulate because it can delay ovulation. Does anyone know if this is correct? Also for those who take it how much do you take? I have Blackmores and it says to take 3 tablets a day which are 660mg each. Seems a lot.