I have PCOS so my doctor prescribed Clomid, metformin and progesterone because I don't ovulate on my own. The calendar they gave me to follow is for a 28 day cycle and my cycles are 34-36 days. The calendar says to take the progesterone the day I ovulate however I have heard that taking it to early could keep the fertilized egg from implanting. I need help!!! What do others do who are taking Clomid? Anyone use Clomid without progesterone?? I take Comid on cycle days 3-7 if that matters. I ovulate around cycle day 18-19ish.