I am pro-choice, and far from being a Bible thumper. In the future, don't fuck anyone you wouldn't want to father a child with. You spent the first page boo-hooing about how you are just a child and in no situation to raise one of your own.
I agree.
I am sure that young girl is going to remember this day for the rest of her life, and will be haunted by it. I can only wish the same on you.
If you are "too young" to expect to be held responsible for your actions, then you are too fucking young to be having sex. (and the same goes for her as well.)
Condoms and other methods make this outdated mode of thinking... outdated.