Sixteen and pregnant, atmosphere: depressing

Melanie is a sixteen year old girl who goes to highschool. On the weekend she went to a party, got drunk and couldn't remember a thing the next day. Since she was at the party she has been feeling sick every morning and is constantly craving desserts. Melanie hasn't told anyone about this yet, the reason being is that she doesn't want to scare anyone by saying she is pregnant and find out she's not, or wouldn't even be sure because she was drunk. If she is pregnant she has three choices, and has already ruled out one of them, which is having an abortion. She is scared of how to tell her parents, what they will say and who will be there to support her.