You are NOT too young! You can do this! It's going to be hard, especially since the father isn't going to be involved, but the baby will be more than enough of a reward in the end.
Your dad will probably be upset at first, but parents usually forgive their kids after a little while.
If you need support, try a Crisis Pregnancy center, or try calling one of the numbers on the right hand side bar of this site. (And you can get support on this site too!)
Please don't abort your baby, you will regret it for the rest of your life.
How are you doing?