I had sex with out a condom about 4 days ago... the next day after sex I notice I was spotting a little it was a little blood in the toilet and on the tissue when I wipe myself this happen twice the same day... the next day I was regular... today I started back with the spotting this happen 3 times today... I had my period on sept.4 until the 7 do anyone have an idea what this could be I have no discharge or smell