And it appears that the mom-to-be hasn't changed her lively fashion style just yet. Fergie kept her growing baby bump covered up under a bright yellow top, leather jacket, black leather pants and a long scarf. The Black Eyed Peas singer also styled tall wedge boots and dark shades.
Duhamel has been busy promoting his new movie Safe Haven with costar Julianne Hough, and it looks like his pregnant wife is joining him.
Hough tweeted Monday, "London Town . . . Here we come!" Duhamel also retweeted an announcement that he would be speaking at the Regeant Street Apple store in London with Hough and Safe Haven author Nicholas Sparks on Tuesday.
In his new movie, Duhamel plays a single father of two and he told Parade magazine that the role gave him a glimpse into fatherhood.
"But I already had an idea of what fatherhood would be like. It's something I've always wanted," he said. "It's the most important thing. When I do become a father, it will be my greatest achievement."