Already mum to the world's most adorable toddler, Luna, Teigen shared the news with the world by way of a video she uploaded with the caption, "it's John's!"
The video shows Teigen asking Luna what's inside her tummy, with Luna answering, repeatedly, 'Baby.' Can we get an 'awwwwwww'?
Teigen has been open about her fertility struggles in the past - after years of trying to fall pregnant, she and Legend sought IVF treatment before having Luna. Last month, she revealed they had been trying for a second child.
Congratulations to Chrissy Teigen and John Legend! The world's cutest family is about to get even cuter.