You had the kernel of a sensible point a while ago, but now you're just digging in. Acting as if most teenage pregnancies occur because the woman involved doesn't understand how babies are made is asinine unless you've unearthed some population I don't know about; and claiming that frictions standing in the way of perfectly convenient birth control absolves a person from all consequences is both asinine and actively insulting to the agency of human beings everywhere.

Things could be better, of course, and that's worth talking about, but your argument has turned into a caricature.