I had my period January 16-20 and on the 21st I had sex we didn't use protection at first but when he was about to come he put on a condom like an hour later I bought the next choice pill just to be extra safe a week later I got what seems like my period but it was so weird because it only lasted like 3 days and it was much lighter than my normal periods it was more like spotting (January 27-30) and as of now my period is 4 days late could it be the pill messing up my period or does the light period counts like a normal period? Or it there chances I might be pregnant? Since like 2 week ago I been feeling Lowe back pain like feels like my period is about to start but nothing also my breasts are not tender and they usually and that's a signal when I'm about to get my period. Has everyone ever gone through this?