Pregnant with my 3rd baby?

My stomach feels tight but not showing much yet im only 11 weeks. I feel insecure, no sex drive, not confident at all and I never felt these emotions with past two pregnanies is this normal? I only get hungry like once a day i try to stay healthy. I was getting nauseated but its slowly going away so im eating a bit more. but its almost like my stomach is shrinking i ate more before i was pregnant then i do now is this normal ??