Hi.... I am 37yras and unmarried women. I have been diagnosed with polycystic ovarian cyst in last april. After some medication my menstrual normalised. But my menstruation stoped, in november i have taken Sandoz Regestrone 5Mg 2 tab/day for 10 days as per doctor's advice. It has been 10 days past after i last taken the medicine, but my periods did not started. i have lower abdomenal pain and also have vometing feeling. Plz advice what should i do now, I am not well.