Hi Sarah,
Welcome to the site. I know that finding out that you are pregnant is really really scary, but take a deep breath and try not to freak out.
Now, about your parents. For the most part parents get upset and yell a lot and threaten that if you don't get an abortion they will throw you out or whatever, but then after a little while they calm down and things just get better from there.
But even if they did kick you out, it is worth even going through that if you can give life to your baby. Trust me, it won't seem like it at first, but when you feel it moving in your belly, when you hear it's first cry, when you finally get to hold it, you will know that it was worth everything you had to go through.
But that's a little ways into the future. Right now just focus on the next step, ok?
keep us updated!
Hugs!