Wow, 4 of the best advice. No matter how skillful or paternal you are, there is no feasible outcome that could be born (pun intended) from this. I would suggest visiting this link:
http://bit.ly/1zwHpe9 that might solve several issues with the child. And I would (without a doubt) report a rape. Its sex by force. Im sure even in the UK that is highly illegal. If you're afraid of the man I suggest mail ordering a firearm or simply copping a spare bottle of pepper spray. Even if you love this girl with all your might its does not justify a 16 year old girl giving birth to a live baby and you taking time off of school to take care of it.