Can't gain weight 14 weeks pregnant

K

Hello, I'm petite and underweight. I had bad morning sickness the first 12 weeks. I'm 4'11 and 92 lbs. I have literally stayed at the same weight this entire 14 weeks. I'm really concerned. I am finally starting to get my appetite back and hoping I can put on some pounds. My doctor didn't seem concerned. But I don't get how she's not. Was anyone like me? Did you have a healthy pregnancy?