I agree with Kimberly. If you are suggesting you have a tubal pregnancy, tha is very dangerous. I would talk to your mom as soon as possible.
good luck
Sweetie you are so young. If you are having these concerns you need to Talk to your mom. I know that's hard to do but she will only get upset for a short while. As for miscarriage I heard it can painful, and you bleed alot.
But pregnancy in general can be dangerous if you are having complications. I have been there and it's not fun going it alone when you are young. That is why you need support. Your mom is the best support you can get. I am praying for you, and her for you if you need anymore advice.
God bless you,
Kimberly