Kristin Cavallari takes pregnant pause from filming mystery project

Pregnancy certainly agrees with Kristin Cavallari. The star, who is expecting her third child, is absolutely glowing. The former star of MTV's The Hills shared a snap of herself looking beautiful as she cradled her growing baby bump after filming an as yet undisclosed project.

"Just finished filming... will let you know what show when I'm allowed to :)," wrote the 28-year-old alongside the snap of herself in a short teal dress and nude heels.

Just finishing filming...will let u know what show when I'm allowed to ;) dress @azzedinealaiaofficial // shoes Kristin Cavallari by @chineselaundry

Una foto publicada por Kristin Cavallari (@kristincavallari) el

Already a mum of two boys with American football star husband Jay Cutler, Kristin is showing no signs of slowing down as she prepares for baby number three.

Earlier this month, she even managed to find the time to escape on holiday in Ojai, California celebrating a friend's upcoming wedding. And she showed off her bronzed figure and baby bump as she posed poolside with her friends.

Una foto publicada por Kristin Cavallari (@kristincavallari) el

"Had the best weekend for @char_major 's bachelorette! Even though I was the first one in bed it was a blast," Kristin wrote in the caption.

Kristin and Chicaco Bears quarterback Jay have a two-year-old son Camden and a 13-month-old son Jaxon.

The couple got married in June 2013 in Nashville, Tennessee where they currently reside. Previously they divided their time between Los Angeles and Chicago.

Kristin Cavallari is pregnant with her third child

Kristin, 28, announced her pregnancy in May, one day after Mother's Day in the US, via her official Kristin Cavallari app. Under the heading 'Big News', the former reality star told fans: "We're at it again! Thrilled to announce baby number 3 is on the way. The Cutler crew just keeps on growin'!" In the snap, the young brothers can be seen in the background, with Kristin standing at the forefront making a heart with her hands around her stomach.

Kristin recently spoke lovingly about her sons. "Camden is a really good brother," she told Us Weekly. "He's very protective and very sweet. But he also gets a little upset when Jax tries to take his toys and messes with his stuff. He gets a little territorial with some stuff, so it's kind of funny."