You can try preggo pops they work like a charm. I was so sick I dropped twelve pounds :/ but now I;m at 22 weeks and eating regularly. Hope you feel better
I was dropping weight this time due to major morning sickness and my OB told me 59mg of B6 and lemon water...worked well for me.
Also maybe try shakes/smoothies with protein 'Vega' is what I use since it's pregnancy safe. (Most protein powders aren't)
You can try drinking a herbal ginger tea to help settle the nausea. Helped abit for me. Also try snacking on saltine crackers so your stomach doesn't stay completely empty... I lost about 20lbs when I first got pregnant, and am having a healthy pregnancy now at 29wks. Small sips of water to keep hydrated is also a good idea. Pedialyte is another good one to boost your electrolytes or watered down gatorade. hope you feel better soon!
Baby will be fine as long as you take your prenatals. I dropped 10lbs from morning sickness. Baby is healthy.