I'm Not Getting the Message

I just saw one of those commercials for birth-control pills where the theme song is "There She Goes Again." "There she goes," the pleased-sounding singer trills, while a comforting male voice assures us that this contraceptive is more convenient than the kind we're used to, "there she goes again."

What are we supposed to think "she" is "going" and doing "again"?

I mean, fornicating, presumably. But it's hard to understand why they'd want that to be the message of the ad.