Heidi Montag showed off her growing belly during a workout this week.

The 30-year-old television personality shared a video Tuesday on Snapchat of herself working out at 7 months pregnant.

The clip shows Montag staying fit in a sports bra and shorts on her deck. She followed up by posting a video of husband Spencer Pratt rubbing her "swollen" calves after her session.

Montag is back to business following her babymoon with Pratt in Hawaii last week. She shared a photo July 25 of herself cradling her baby bump while posing with Pratt on the beach.

"#babymoon #7monthspregnant," the star captioned the picture on Instagram.

Montag announced her pregnancy in April, and confirmed the next month that she and Pratt are expecting a baby boy.

"It was in my heart to have a boy," the television personality confessed to Us Weekly at the time. "I thought Spencer really used to want a boy, and then a few months ago we had a conversation where he said, 'Let's just make sure it's healthy. Boy or girl, I don't care.'"

"I hope to have a little girl one day, but for my first child, I really wanted a son," she shared. "I thought it'd be a more natural bond for Spencer since he and his dad are so close."

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Montag appeared on the MTV series "Laguna Beach" before co-starring with Pratt on "The Hills."

Her former co-star Lauren Conrad welcomed her first child, son Liam James, with husband William Tell in July.