"So grateful to share with you today that we're pregnant with our fourth child!" she captioned the black-and-white photo of her husband craddling her growing baby bump (below).
James then confirmed the news himself with a Tweet (below), and also reposted his wife's too-cute 'gram.
But this isn't the first bundle of joy for the couple—they welcomed their third child into the world back in January 2014, a girl named Annabel Leah, and also have a son, Joshua, 3, and a daughter, Olivia, 5.
Congratulations to the growing family.