Pregnant Courtney Stodden celebrates husband Doug Hutchison's first Father's Day in barely there bikini

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Courtney Stodden Shows off Growing Baby Bump in Cute Dancing Video

Courtney Stodden and Doug Hutchison are eagerly awaiting their first child together.

The 21-year-old reality star took to Instagram on Sunday to wish her 56-year-old husband, Doug Hutchison, a happy first Father's Day, and also flaunted her growing baby bump in an itsy bitsy, teeny weeny pink polka dot bikini.

WATCH: Courtney Stodden Shares Candid Morning Sickness Pic -- 'When Does This End?'

"Happy first Father's Day to my amazing hubby! #fathersday #babyontheway," Stodden captioned the shot.

Last week, Stodden posted another picture of herself in the same bikini, and spoke out in defense of her baby bump.

"Stop fat shaming pregnant women. Honestly," she captioned the snap. "If our society thinks that it's actually ok to say a pregnant woman is 'fat' there's something seriously wrong with it."

Stodden announced she was pregnant with the controversial couple's first child last month.

"I feel happy about it but extremely overwhelmed," she admitted to ET. "I'm going through a lot at the moment. This wasn't a planned pregnancy. But life happens."

See more of Courtney & Doug's relationship:

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Courtney Stodden and Doug Hutchison
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Courtney Stodden and Doug Hutchison
CULVER CITY, CA - AUGUST 08: TV personalities Courtney Stodden and Doug Hutchison attend the VH1 'Couples Therapy' With Dr. Jenn Reunion at GMT Studios on August 8, 2014 in Culver City, California. (Photo by Jesse Grant/Getty Images for VH1)
LOS ANGELES, CA - NOVEMBER 22: Courtney Stodden and Doug Hutchison are seen on November 22, 2013 in Los Angeles, California. (Photo by SMXRF/Star Max/FilmMagic)
LOS ANGELES, CA - NOVEMBER 22: Courtney Stodden and Doug Hutchison are seen on November 22, 2013 in Los Angeles, California. (Photo by SMXRF/Star Max/FilmMagic)
LOS ANGELES, CA - SEPTEMBER 23: Courtney Stodden and Doug Hutchison are seen at LAX Airport on September 23, 2013 in Los Angeles, California. (Photo by JB Lacroix/WireImage)
LONDON, ENGLAND - SEPTEMBER 20: Courtney Stodden and Doug Hutchison seen at ColourNation hair salon on September 20, 2013 in London, England. (Photo by Neil P. Mockford/FilmMagic)
LOS ANGELES, CA - SEPTEMBER 23: Courtney Stodden and Doug Hutchison are seen at LAX Airport on September 23, 2013 in Los Angeles, California. (Photo by JB Lacroix/WireImage)
LOS ANGELES, CA - SEPTEMBER 23: Courtney Stodden and Doug Hutchison are seen at LAX Airport on September 23, 2013 in Los Angeles, California. (Photo by JB Lacroix/WireImage)
LOS ANGELES, CA - AUGUST 08: Tracey Jewel, Doug Hutchison, Courtney Stodden, Dr. Ava Cadell and Dr. John Gray attend an exclusive party to celebrate the launch of 'Passion and Pleasure' hosted by Tracey Jewel, executive producer and co-creator of the 'Passion and Pleasure' program and author of 'Goddess Within', at Chateau Marmont on August 8, 2013 in Los Angeles, California. 'Passion and Pleasure' is also executive produced and co-created by Malcolm Day. (Photo by Araya Diaz/WireImage)
LOS ANGELES, CA - AUGUST 08: Chris Johnson, Courtney Stodden and Doug Hutchison attend an exclusive party to celebrate the launch of 'Passion and Pleasure' hosted by Tracey Jewel, executive producer and co-creator of the 'Passion and Pleasure' program and author of 'Goddess Within', at Chateau Marmont on August 8, 2013 in Los Angeles, California. 'Passion and Pleasure' is also executive produced and co-created by Malcolm Day. (Photo by Araya Diaz/WireImage)
LOS ANGELES, CA - AUGUST 08: Courtney Stodden and Doug Hutchison attend an exclusive party to celebrate the launch of 'Passion and Pleasure' hosted by Tracey Jewel, executive producer and co-creator of the 'Passion and Pleasure' program and author of 'Goddess Within', at Chateau Marmont on August 8, 2013 in Los Angeles, California. 'Passion and Pleasure' is also executive produced and co-created by Malcolm Day. (Photo by Araya Diaz/WireImage)
LOS ANGELES, CA - AUGUST 08: Tracey Jewel, Doug Hutchison and Courtney Stodden attend an exclusive party to celebrate the launch of 'Passion and Pleasure' hosted by Tracey Jewel, executive producer and co-creator of the 'Passion and Pleasure' program and author of 'Goddess Within', at Chateau Marmont on August 8, 2013 in Los Angeles, California. 'Passion and Pleasure' is also executive produced and co-created by Malcolm Day. (Photo by Araya Diaz/WireImage)
LOS ANGELES, CA - AUGUST 08: Tracey Jewel, Doug Hutchison and Courtney Stodden attend an exclusive party to celebrate the launch of 'Passion and Pleasure' hosted by Tracey Jewel, executive producer and co-creator of the 'Passion and Pleasure' program and author of 'Goddess Within', at Chateau Marmont on August 8, 2013 in Los Angeles, California. 'Passion and Pleasure' is also executive produced and co-created by Malcolm Day. (Photo by Araya Diaz/WireImage)
LOS ANGELES, CA - AUGUST 08: Tracey Jewel, Doug Hutchison and Courtney Stodden attend an exclusive party to celebrate the launch of 'Passion and Pleasure' hosted by Tracey Jewel, executive producer and co-creator of the 'Passion and Pleasure' program and author of 'Goddess Within', at Chateau Marmont on August 8, 2013 in Los Angeles, California. 'Passion and Pleasure' is also executive produced and co-created by Malcolm Day. (Photo by Araya Diaz/WireImage)
LOS ANGELES, CA - AUGUST 08: Doug Hutchison and Courtney Stodden attends an exclusive party to celebrate the launch of 'Passion and Pleasure' hosted by Tracey Jewel, executive producer and co-creator of the 'Passion and Pleasure' program and author of 'Goddess Within', at Chateau Marmont on August 8, 2013 in Los Angeles, California. 'Passion and Pleasure' is also executive produced and co-created by Malcolm Day. (Photo by Araya Diaz/WireImage)
LOS ANGELES, CA - AUGUST 08: Doug Hutchison and Courtney Stodden attend an exclusive party to celebrate the launch of 'Passion and Pleasure' hosted by Tracey Jewel, executive producer and co-creator of the 'Passion and Pleasure' program and author of 'Goddess Within', at Chateau Marmont on August 8, 2013 in Los Angeles, California. 'Passion and Pleasure' is also executive produced and co-created by Malcolm Day. (Photo by Araya Diaz/WireImage)
LOS ANGELES, CA - AUGUST 08: Dr. John Gray, Courtney Stodden, Doug Hutchison and Tracey Jewel attend an exclusive party to celebrate the launch of 'Passion and Pleasure' hosted by Tracey Jewel, executive producer and co-creator of the 'Passion and Pleasure' program and author of 'Goddess Within', at Chateau Marmont on August 8, 2013 in Los Angeles, California. 'Passion and Pleasure' is also executive produced and co-created by Malcolm Day. (Photo by Araya Diaz/WireImage)
HOLLYWOOD, CA - JULY 31: Actor Doug Hutchison (L) and his wife TV Personality Courtney Stodden (R) poses in a lettuce leaf bikini for PETA at Hollywood & Highland Center on July 31, 2013 in Hollywood, California. (Photo by Paul Archuleta/FilmMagic)
HOLLYWOOD, CA - JULY 31: TV personality Courtney Stodden poses in a lettuce leaf bikini for PETA with her husband actor Doug Hutchison at Hollywood & Highland Center on July 31, 2013 in Hollywood, California. (Photo by David Livingston/Getty Images)
WEST HOLLYWOOD, CA - JULY 17: TV personalities Courtney Stodden (C) and Doug Hutchinson (R) in session with Dr. Ava Cadell (L) for The Passion and Pleasure Program on July 17, 2013 in West Hollywood, California. (Photo by Jesse Grant/WireImage)
WEST HOLLYWOOD, CA - JULY 17: TV personalities Courtney Stodden (C) and Doug Hutchinson (R) in session with Dr. Ava Cadell (L) for The Passion and Pleasure Program on July 17, 2013 in West Hollywood, California. (Photo by Jesse Grant/WireImage)
WEST HOLLYWOOD, CA - JULY 17: TV personalities Courtney Stodden and Doug Hutchinsoni in session with Dr. Ava Cadell for The Passion and Pleasure Program on July 17, 2013 in West Hollywood, California. (Photo by Jesse Grant/WireImage)
WEST HOLLYWOOD, CA - JULY 17: TV personalities Doug Hutchinson and Courtney Stodden in session with Dr. Ava Cadell for The Passion and Pleasure Program on July 17, 2013 in West Hollywood, California. (Photo by Jesse Grant/WireImage)
WEST HOLLYWOOD, CA - JULY 17: TV personalities Courtney Stodden and Doug Hutchinsoni in session with Dr. Ava Cadell for The Passion and Pleasure Program on July 17, 2013 in West Hollywood, California. (Photo by Jesse Grant/WireImage)
WEST HOLLYWOOD, CA - JULY 17: TV personality Courtney Stodden in session with loveologist Dr. Ava Cadell For The Passion and Pleasure Program on July 17, 2013 in West Hollywood, California. (Photo by Jesse Grant/WireImage)
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Still, her relationship with Hutchison remains strong. The two recently renewed their wedding vows at the Hollywood sign in Los Angeles to celebrate their five-year anniversary.

"Today marks my 5th wedding anniversary," she wrote on Instagram last month, sharing a picture of her hubby carrying her on their wedding day in 2011. "Five years ago I married an incredible man & we are celebrating by renewing our vows in a very special place!"

WATCH: Pregnant Courtney Stodden Embraces Her 'Insane Body Changes' With Bikini-Clad Dance Session

Watch the video below to see how other stars like Kendall and Kylie Jenner, Chrissy Teigen, Gisele Bundchen, and more celebrated Father's Day!

Celebs Celebrate Father's Day: See Kendall and Kylie Jenner's Special Messages to Caitlyn

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