Keep losing weight


I’m 12 weeks today and I’ve been so sick and nauseous so far I barely eat because if I do I throw up. I live on cheese and crackers pretty much. I’ve lost around 19lbs. In these 12 weeks. I see my doctor Monday but is it normal to lose weight like this and I’m worried about not eating is this hurting my baby any 😩 I’m doing my best to eat what I can when I can but I’m just so damn sick it seems impossible