Perhaps Dan Savage (and his friend Gomez) have the best reaction to this whole CDC/pre-pregnant thing (he's been closing his columns with excellent "Straight-Rights Updates"):

Oddly enough, Bush's Centers for Disease Control and Prevention don't urge straight men to regard themselves as existing in a perpetual state of "pre-fatherhood." Smoking, obesity, asthma, and diabetes could seriously hamper a man's ability to do the heavy lifting that comes with fatherhood. But Bush's CDC doesn't seem that interested in regulating the behavior of all those fat, smoking pre-fathers out there.

Gee. Isn't. That. Weird.

There is a bright side in the CDC's announcement: If we're going to regard all females as pre-pregnant, then we can, as my friend Gomez points out, regard all virgins as merely pre-fucked.