Courtney Stodden is embracing her new baby bump with a big smile.

The 21-year-old reality star debuted her growing belly in an Instagram video on Monday after announcing she is expecting her first child with husband Doug Hutchison.

"Embracing these insane body changes with a smile lol #pregnant #babybump," she captioned a clip of herself singing and dancing with a painted smiley face on her stomach.

Stodden admitted her pregnancy wasn't planned when she revealed the news in May. She described herself as "happy" but "extremely overwhelmed," and later detailed her struggle with depression to Us Weekly.

"My depression affects my appetite, sleeping patterns and overall perspective on life," the star shared. "At times, I have severe insomnia and other times I find myself sleeping too much. I have feelings of hopelessness but experience many moments of absolute euphoria."

"I already love this baby so much. I just fear the thought of motherhood," she confessed. "It's such an overwhelming responsibility and I want to be the very best mommy that I can possibly be."

Stodden was just 16 years old when she married Hutchison in 2011. She and the 56-year-old actor, who is known for "Lost" and "24," subsequently appeared on the British reality series "Celebrity Big Brother."

The couple appeared together in 2012 on VH1's "Couples Therapy" with Stodden most recently appearing on Lifetime's "The Mother/Daughter Experiment: Celebrity Edition" alongside her estranged mother and former manager, Krista Keller.