I have PCOS, and I have been taking Metformin and Vitex extract as my Dr. ordered I ovulated around the 19th-22nd of November, according to when I felt it and other signs. I am not sure when to do HPT because I don't want to do it to early and my periods are so erratic that I really don't know when I am late for sure or AF just has not come yet. Can anybody help, I just need to know a good guideline for when to test, I am already at my latest date for my period, when they come regularly, but of course it could be one of those odd months. Help!