Here is an article claiming that more teens are relying on the "rhythm method" to avoid getting knocked up by the hoodlum down the street.  I'm not sure if I'm more surprised that they think it's effective, even though it's hit or miss in adults with regular cycles, or that they think it will work effectively for them, with their probably-irregular maturing periods.  I mean, really, these kids should be spending more time tracking TV shows or the results of their acnepril, not whether or not they might be fertile.

Here's a lesson to all you parents.  Sit down and have "the talk."