Honestly?
You'll most likely loose all your friends, but that doesn't mean you can't make new ones.
You're 19 which means, when you have the baby you'll get food stamps. It's not a horrible thing. But you're still living and will be able to support yourself and the baby.
In my state (missouri) there is a community for young moms who cant support themselves, and there's houses they can live in for 45 dollars a month, including electric,and etc. You can also go on wic, you'll be able to get juice.Milk,eggs.Cereal etc while you're pregnant.
It's going to be hard...I'm not going to lie to you. But being a mother is an awesome feeling. All the things you get to experience. The heartbeat,your first ultrasound. It's amazing.