so exactly three weeks ago, I had cramping as if my period was coming on follwed by bleeding, but it was only when wiped my self not enough to wear a panty liner or tampon. the cramping went on for about 20 mins then it stopped and then that same night the exact same incident occurred. the next day the same symptoms. that sunday took a pregnancy test the read positive. monday took two more of a different brand and it was negative. when to the local clinic and their urine test, tested negative also. but while all of this was going on I have been having constant headaches. been waiting till my missed period( which was yesterday the 24th) and still no menstrual am I pregnant or sick