Depressed 😭

I am 11 weeks pregnant and thinking of my little peanut makes me so happy. But I am miserable, I can't eat . If I smell food I throw up . If I see food on tv I throw up . I recently went to my obgyn, and I have lost 12 pounds in a matter of 2 weeks. I just don't know what to do . Nothing helps .. I'm so miserable it makes me not want to be pregnant and I don't like thinking like that ....