My son got his girlfriend pregnant, how do I get him out of this?

I just found out my 16 year old son got laid! Of coarse I high-fived him (way to go son, that's maboy!), but now I found out he might have gotten her pregnant, and she said if she is, she will be demanding child support ugh. I mean the slut should have kept legs closed if she didn't want to get pregnant. So the question is how do I get him out of this? He has his whole future ahead of him and college and everything, so he can't be dealing with this crap.