Hi there!
first of all, before you get really scared, you need to find out whether or not you are pregnant. Wait until your period is due (or if you don't have consistent periods wait two more weeks) and then take a HPT or get a blood test.
If you do find out that you are pregnant, please consider your options! As so many of the girls on here will tell you, abortion is not a good choice. Adoption is a really good alternative if you don't want to keep the baby.
But don't have an abortion just because your situation isn't good or your family won't support you. You will regret it for the rest of your life.
If you need support, that's what this site is for!
So wait until you know for sure if you are pregnant before you get too worried, ok hun?
Make sure to let us know when and what you find out and what you decide to do.
Hugs!