I got my period on june 3/4 finish on the 10/11 had sex on june 20/21 now on june 24 i was feeling moist then when i saw was blood like a patch so i shower put a pad on then went o check my self it was brownish.. now on the 25th alittle red and brown so take shower put another pad on nothing there now and today is the 26 but when i wipe there alittle brown and my period dont start till July 3/4 so wat does this mean... HELP