“Baby bump getting BIG,” The Hills alum, 27, captioned the above photo montage Saturday.
On Valentine’s Day, the reality star shared another image of her growing belly.
“Making wild mushroom and asparagus risotto,” she captioned the kitchen shot.
Already mom to son Camden, 18 months, with husband Jay Cutler, the Laguna Beach alum is expecting the couple’s second son.
“We decided to announce that….we’re having another boy!!” Kristin shared on Instagram. “We couldn’t be more excited!”
In November, the mom-to-be shared her thoughts on the baby’s gender.
“Of course I want a little girl, but another boy would be a ton of fun too, so I really don’t care either way,” Kristin said. “There’s great things about both.”