Can i be emancipated if i'm pregnant?:
Yes.

You can be emancipated if you're not pregnant, but certainly it provides a judge with a fairly obvious reason to approve the request.  

I did it...It took about 30 minutes of completing the forms, a couple of signatures, and 5 minutes in front of the judge.  Fairly easy, really.

And certainly, I do recommend it, if you're going to need to be the one who signs for things on behalf of your child.  Most people won't question you, but it's good to have in your back pocket, just in case.