me n my guy have been very careful about protection but i missed a period and haven't had it since feb.23 in which lasted 5 days but its april and havent had my period, i have been feeling very tired with heart burn and i went to take a test and came out negative and im 100% sure nothing went in so i can possibly be pregnant or could i be?? Any suggestions that can help me and today i been cramping in my abdomen area alot since last night. Could my period be coming??