Baby check up

Today was my 12Th week check up. I got to hear the heartbeat for the first time in the office, the heart rate was 160, nice and strong! My doctor was a little concerned because of my weight. I have been sick this last week with a sinus infection so I cant smell or taste anything so my appetite has gone down this week and I lost 4 lbs. from 3 weeks ago when I had my ultrasound. She wants me to start gaining weight instead of lossing it. Other than that the baby is good and I just need to eat more.