Hi. I had my last period 21 september. I have pcos, my Dr. Prescribed me clompipure 50 mg 2 tab day 3 to day 7, nd gestofit sr 300 mg 2 tablet day 18 to day 27, I am running 37 cycle day running now, no period, after stop gestofit on day 10 that means after the 7 th day missed my period I took a test, which is negative. I feel very much gassy, uterus little bit sometime cramping, breast tenderness, on day 21 imy uterus r cramping like back stabbing for 2to 3 sec, nd again next day on 31 same feeling I am. Why my period is late? Nd what chances my pregnancy?