First trimester

Gail • I currently have two kids a boy and a girl I love so much but now that they are getting big I want another baby!
I have lost 11 pounds since I found out I was pregnant. I am currently 6 weeks pregnant and I really don't have an appetite to eat unless it's at 2 or 3 in the a.m. Is this something I should be worried about because I didn't feel this way at all in my first pregnancy