Wha?? How does that work?? The sooner he gets in the more risk there is of getting one. When he gets older he will probably settle down with one person and have sex only with them. If they don't have an STD then there's little chance of him getting one.

If he starts now then there's how many years before he gets settled down with one person, so there's a greater chance he might get STDs...

As for abortion, if the woman was raped, or was blind drunk when she conceived (i.e. didn't know what she was doing) then it should be allowed...but if she knew the consequences beforehand then it shouldn't be allowed. The best type of punishment in that situation would make them live with what they did...quite literally.