I performed intercorse during the time i should have been in ovulation 13 days ago. I was very late for my period i was suposed to have eairler last week. I started my "period" today and it feels different then my normal periods. Cramping is different as well as new found back pain and sevear pain just over in that aria (stomach down). Im not sure if im passing (very very minimal) tissue or really weird blood clots! Is that even possible for (posibly) being pregnant 2 weeks? I just feel strange and wanted to get your input on if you think this seems like a really late period or miscarrage.