Ryan,
I'm glad to hear that you love your girlfriend and are willing to stand beside her and support her. For many girls the father bails out on them during this hard time. I know it might be frightening and scary right now, but you two need to be there for each other.
Do either of your families know about the pregnancy yet? It may be frightening to tell them, but especially since you are both young it will be best to have the support from your families.
Like Georgia stated, having a baby will bring many changes and responsibilities to your lives. But I hope that you two decide not to have an abortion and decide to give life to this child. However you might want to consider adoption as a loving alternative. Either way it will not be easy and you will have to face some hardships, but you will make it through. Continue to support your girlfriend and your child. Try to do what is best for your child and for the two of you, whether it is parenthood or giving the child up for adoption and moving on with your lives. Best wishes.
Kate