help! soooo sick!

Destiny
I'm soooo sick I'm 5-8 weeks going for my ultrasound on Halloween to know for sure! 
I can't eat because it just make me sick. It's been two days now and every time I try and take a bite I can't even swallow it's because it's soooo nasty! I know it's not good for the Baby to not eat! What do I do?