I currently missed my period and am 4 days late. I have done a blood test that has come out negative yet I feel nauseous when I eat and for 2 weeks had morning sickness which is as long as my first pregnancies morning sickness lasted. My abdomen is getting bigger and my sense of smell is stronger. I show some symptoms but can not figure out what is going on. Can anyone help me get some clarity as to what it may be?