I've been anxious and scared shitless over a pregnancy scare for a week now
How did you react to that?  Were you more scared of it being real or of it being untrue?
I'm terrified if it's true, I don't know what to think.
It's normal to be afraid when you're not ready for a baby. There are some effective forms of birth control you can use to prevent pregnancy in the future.
Nothing would make me happier. I'm too young to be a parent.
From the way you describe the situation, it sounds like you are still worried about whether this pregnancy could be real or not.  Since you are worried about being pregnant, I would advise that you speak to a pharmacist about it.  There will be pills that you can take to stop the pregnancy from progressing, if it's real, and they are easy to obtain.