Help!

I'm about seven weeks along. I feel so weak, I don't eat much because it make me wanna gag. I tried the whole crackers and ginger ale thing isn't working. I got on Diglec that didn't help. I had to quit my job. I can barley get out of bed without feeling nauseous. I'm not throwing up at all. Haven't thrown up once. Pretty sure I'm dehydrated! I don't know what to do!