11 weeks lost 20 pounds

Tori • Baby Kinlee due 12/17.
I have been put on 4 meds and nothing has helped. I can't keep anything down. Even if I don't eat I still get sick. Idk what to do! Or if I should even worry. I don't see my dr again for another 2 weeks. My BMI was at 25. So I was right on the line of being considered over weight. I'm 5ft 3in and I was 150 and I'm now 130.