Amber Rose is possibly pregnant with fiance Wiz Khalifa's baby

Congratulations are (maybe) in order for Amber Rose and fiance Wiz Khalifa (aside from well-wishes for their future wedding): according to new reports, the model is pregnant with the couple's first child.

VH1 reports that rumors have the couple expecting a new arrival in January, which means their wedding might be moved up to October. They didn't plan the addition, but they're reportedly very happy with the news and Rose has quit smoking.

"Amber and Wiz unexpectedly got pregnant, but they're really happy to be starting a family together," a source tells RadarOnline. "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."

That said, the news is by no means official so don't plan your shower gifts just yet. Neither celeb's reps have commented yet.