Heidi Montag posted a baby bump photo at six months pregnant over the weekend.

The 30-year-old reality star showed off her growing belly while visiting her hometown of Crested Butte, Colo., with husband Spencer Pratt.

"So happy to be home! #6monthspregnant," the first-time mom-to-be captioned a picture of herself and Pratt standing in front of a scenic backdrop.

Montag followed up by sharing a photo of herself with her mom, Darlene Egelhoff.

Her relationship with her mom has improved since she and Egelhoff appeared on "The Mother/Daughter Experiment: Celebrity Edition."

"Ok top of the world with my mama! #6monthspregnant #colorado #cb," the star wrote.

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

"It was in my heart to have a boy," she told 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.'"

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

Montag came to fame on the MTV series "Laguna Beach" before starring with Pratt on "The Hills."

Her former co-star Lauren Conrad is also pregnant and expecting her first child with husband William Tell.