Who the hell do you think you are? You do not have the right to interfere with everyone's lives because you're cranky. You should have used birth control, something christian men are often remiss about. Why does the term "christofascism" come to mind?
BTW--I'm SURE you can back up that 40% figure. Right?
Also, most girls want to have abortions because they are too scared to tell their parents. Tell her nothing. Walk up. Knock on her door. Walk directly to her parents and tell them straight out that she is pregnant. It is going to take real courage - but the chances of the baby being born go up about 40%.