Bro you need to take a step back and think about this. You should absolutely not be supporting some other man's child. If none of you are married she needs to go to family court and prove paternity and take HIM to get child support. How old are you? You sounds like you are too young to understand the long term repercussions and what it means to support a child that's not yours for 18 years. You haven't known this person long enough to take on a commitment like that. You don't even know if it's true that she was assaulted. This is sometimes a tactic to garner sympathy so you do something against your own best interest like raising someone else's child. You need to run, not walk, from this situation my friend