kristin-cavallari-boys-baby-bump

Expectant mama Kristin Cavallari shared an updated baby bump photo on Instagram Thursday.

“Make sure to follow @emeraldduvjewelry to see what I’m up to today! I’m taking their Instagram over,” The Hills alum, 28, captioned the image with sons Camden, 3, and Jaxon, 17 months.

“In the mornings, now, I’m by myself with the boys,” the reality star-turned-designer recently told PEOPLE. “I like the mornings with the boys, so I don’t mind that.”

Kristin – who is expecting a daughter with NFL star husband Jay Cutler – says their elder son is all about daddy these days.

“It’s really cute,” she said. “He’s really into [football] now and he tackles Jaxon — which is not good — but I’ve been taking him to the games and he’s been having a lot of fun.”

As for her younger son, it sounds like he’s been picking up on mommy’s potty mouth.

“I swear a lot, so that’s been tough for me, but I’m trying really hard,” she admitted. “Camden said the F-word once. He said it like, ‘Mommy, why did you say f—?’ so he didn’t just say it for no reason. It really makes you catch yourself and make you be aware of what you’re saying all the time.”

Make sure to follow @emeraldduvjewelry to see what I’m up to today! I’m taking their Instagram over…

A photo posted by Kristin Cavallari (@kristincavallari) on Oct 8, 2015 at 8:28am PDT