Kristin Cavallari showed off her pregnant body in a strappy black swimsuit while vacationing with husband Jay Cutler and son Camden.

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The 27-year-old former "The Hills" star shared a picture of her beach "vay-cay" on her Instagram account Thursday.

"Been having a beautiful, relaxing family va-cay," Cavallari captioned the image.

"Thanks @mikoh_ for the perfect preggers bathing suit."

The photo comes a couple of weeks after the reality star revealed she was pregnant with another son.

The designer and her Chicago Bears quarterback husband welcomed their first child in August 2012.