Insert rhyme or "joke" about labour here.
One source, speaking to Obsolete through a speculum, raved: "This changes absolutely everything. Never before has a woman been pregnant during a general election campaign. The manifestos of all the main parties will have to be completely rewritten as a result. How can Gordon Brown possibly continue with his message of Labour investment against Tory cuts now?"
The nation's press were equally awestruck by the developments. Many were so stunned that they genuinely thought that rhyming Sam Cam with "mam" was amusing, while the Daily Mail settled upon "SAM'S HAVING A BABYCAM!", in an apparent reference to Babycham, which absolutely no one got. Pages were filled with the political implications of the leader of the opposition's wife having a child, the Guardian noting in a by no means pretentious aside that "the fact she will be pregnant will give her presence on the campaign trail greater piquancy". This unfortunately resulted in the news about small matters like parliamentary corruption being shifted to page 94, to give space to Zoe Williams to write about how this changes everything in an entertaining and certainly not interminable fashion.
There was also certainly no ulterior motives in the announcement being made yesterday. That on Sunday there was an embarrassing photoshoot featuring Glam Sam Cam (soon to be mam) in the tabloids, something knocked entirely off the news agenda with the news of the pregnancy, was just a coincidence, and an unintended side effect. No one would ever be so cynical with such happy news.
One thing was however cleared up yesterday. Everyone had previously assumed that David Cameron was referring to his wife when he discussed his "secret weapon". It's now apparent that he was in fact talking about his cock.