ive tried 3-4 pregnancy hme test for the past few weeks since this month i had not come menses, it's already 12 days from my expected menses date. every pregnant test ive took is all negative but i kept feeling like im pregnant as im going on symptoms like breast growing like i dont experience before,also experience of an increase in vaginal discharge,and also having belly fats curved in the shape where its blaoted (was wondering if i am fat or undigested,pregnant?), i also experience out of sudden will feel like vomitting, and just past few days my bf told me that my nipple colour had changed and breast became bigger too, having hot temper and sometimes having backache and can't walk long hours at shopping. advice and answer pls.....