Worrying about weight loss.


So I am 21 years old. This is my first pregnancy. I have consistently been 113-115lbs since I was 17. I’ve always eaten quite a bit. When I first found out I was pregnant I was 115.4lbs, But in the last 1-2 weeks my weight has dropped to 108lbs. I can’t keep anything besides crackers and fruit down and I am getting really worried. I’ve read that weight loss is normal in the first trimester (I am 7weeks and 2days) But I have been told time and time again by doctors before my pregnancy that I can’t afford to lose weight. I’m even more concerned now that I also need to be providing nutrients for not only my self but baby as well. If anyone has any insights I’d really appreciate it.