Looks like Whiz Khalifa is going to have to put some of his weed money aside for baby food, because he’s announced that he knocked up girlfriend Amber Rose.

According to a source, the pregnancy was shockingly unplanned!

“Amber and Wiz unexpectedly got pregnant, but they’re really happy to be starting a family together. Amber’s already had to make some big lifestyle changes, like not smoking cigarettes anymore. As a model she’s used to having a thin waist, so this is going to be an adjustment for her,” said the source.

Friends close to the stars say that Rose is due in January and have decided to schedule their wedding in October so they can walk down the isle without a noticeable baby bump.

Are we supposed to say congratulations, or are we chalking this up to an accident…?