“Willows doll baby has a pregnancy pillow too,” the Raise Your Glass hitmaker, 37, captioned the cute snapshot.
The Grammy Award-winning singer also shared a sweet throwback photo with husband Carey Hart in celebration of their 11th anniversary.
“Yum yum yum yum yum yum yum yum yum yum yum ? that’s one for every year care bear. I really like you this week. #happyanniversarymylove I’m very lucky to be able to say that you’re mine. Thanks for sticking around ?,” she wrote.
Hart, 41, also shared a sweet selfie with their newborn son Jameson.
“I finally got someone to hang out with me in the early hours of the morning ?. Happy Monday everyone. @foxracing #foxracing #BeADadNotAFad,” he Instagrammed the image.
The Just Like Fire singer and the former motocross freestyle racer welcomed their second child – son Jameson Moon Hart – on Dec. 26.
Last week, the proud mama posted a photo of Willow cuddling her newborn baby brother.