Ok my last period was December 28 2012 3weeks ago i started geting sore breast nausea acne peeing a lot cramps in my legs vagina an lower abdominal colostrum alittle in breast dr strongly thinks im pregnant took me off all meds.negative hpt negative blood test did a ultersound an have thicking of uterus seen something small thought might looked like the sac but said to small to tell ok the smell of certain thing make me nausea did a hcg test said it was normal ut didnt give me the number im tired an fatigue all the time eat more then usual breast are unbearable craving an diss like some foods i love an im more emotional please help me what could be wrong if im not pregnant. Need to no cause my breast an this nausea is killing me thanks in advance .....