I think schools need to stay out of the parenting game. I know parents can be awful at their jobs. I do. Really. Plenty of them suck.
However, I still stand by my assertion that schools should stay out of the parenting game.
That said, I don't think it has anything to do with parenting when you explain basic reproductive concepts, birth control, etc. So, I have no issues with sex education as long as it remains neutral. I don't think discussing birth control options is a problem. Social studies/government classes cover legal defenses, controversial cases, etc. There is no reason not to share the facts.
However, pushing abstinence or pushing "safe sex" (it's one thing to tell kids about how effective Birth Control Option A is and another thing to tell them to *use* it) goes beyond education. Education involves giving people the facts and the skills to evaluate them.
So, pregnancy pacts are bad among teenage girls. I get it. As far as I'm concerned, the parents need to be shamed in the town square for raising such a bunch of twits.
I might want the schools to butt out, but I'm cool with shunning and other social repercussions.

Oh, and PS - I can't wait for Baby Borrowers, lol. It sounds absurd. My BF and I don't particularly enjoy babies/kids, but we're fascinated by these bizarre reality TV shows (like Kid Nation) and don't understand how people aren't getting sued left and right. Who, exactly, is turning their infant child over to a couple of teenagers for a reality TV show?