I am 24 with 3 kids I have always had regular normal periods this month instead of getting my regular period I had dark brown discharge it looks like brown blood, it is very light flow a pad would last well over one day the discharge doesn't stink it isn't gooey or thick I'm not itchy or having any other symptoms, I guess I have been constipated but other then that nothing else seems to be any different please help what could possibly be causing this!