I started taking vitex on cd10 of this last cycle and probably ovulated on cd16 (egg-white cervical mucus and bbts went up and stayed up). My temperature stayed up for 17 days which is unusual for me, whenever I've managed to ovulate in the past I get my period 14 days later, but I've read that vitex can make your luteal phase longer. The weird thing is that my temps have been down for 3 days now and still no period! I've been charting my cycles for a couple of years now and I'm used to seeing stretches of no ovulation with no AF, but this is the first time I've ovulated with no AF. My body gets ready to ovulate every month at the same time, increasing cervical mucus up to eggwhite, but it only manages about 1/3 of the time. The other times my temperatures don't go up and no AF. Just wondering if anyone else experienced anything similar when first starting vitex. I think it's a step in the right direction as I had AF last month so I wouldn't normally ovulate again for another month or 2 or 3. I made a ton of changes to my diet this month too so maybe my body is just confused.