Initial reaction, hell no. But...

The big question here is how old is he, and why does he need a home? Theres some serious info missing.

As far as everybody saying your daughter will get pregnant, if thats going to happen, it will regardless. Theyre already [bleep], and no amount of parent intervention can stop that. We were all banging our girlfriends at 16. Mine didnt get pregnant. Its called birth control.