The reality star defended herself on Instagram after posting a photo on Thursday

By Joelle Goldstein
November 23, 2018 10:21 PM

Kathryn Dennis did not let any haters ruin her Thanksgiving.

On Thursday, after sharing a photo to Instagram featuring the mom-of-two and her Southern Charm co-star Austen Kroll, a fan started speculating that Dennis, 27, might be expecting.

“Someone looks prego,” someone wrote under the shot of Dennis, who is dressed in a high-waisted black flowy skirt and a white blouse, and Kroll standing in front of a staircase leading to a home

Dennis slammed the body shamer with one simple line: “No, I have just gained weight.”

Kathryn Dennis and Austen Kroll
Kathryn Dennis/Instagram

Supporting his friend and co-star, Kroll, 31, jumped in and called out the Internet trolls for their foolish comment. “*Some* of these people are absurd,” he wrote. “Thankful for you! Oh, and my stomach is still recovering!”

Kathryn Dennis' comment on Instagram
Kathryn Dennis/Instagram

In addition, he posted a shocked face and face-palm emoji.

Many of Dennis’ fans were also quick to rush to her side, defending the star and her alleged weight gain. “You’re absolutely beautiful,” wrote one fan in response.

Another reminded Dennis that she was not alone in the gaining a few pounds after the food-filled holiday. “Girl you look Beautiful even if you have ‘gained weight’ you’re not alone,” the fan wrote.

Austen Kroll's comments on Instagram
Kathryn Dennis/Instagram

To prove that nothing would get her down or ruin her Thanksgiving, Dennis shared another photo of herself — this time, giving thanks to “the simple things” in her life.

“So dang grateful today. For my friends my family my life,” she wrote. “I hope everyone enjoys their day. If you take the time to look back at your life no matter the ups and downs there’s so much to be thankful for today.”

“I hope everyone realizes how special they are and how unique life is in this sense of who all we inspire as well as those who inspire us. It’s the simple things,” she added.

Thomas Ravenel and Kathryn Dennis
Charles Sykes/Bravo/NBCU

RELATED: Southern Charm‘s Thomas Ravenel Accuses Ashley Jacobs of ‘Bad-Mouthing’ Kathryn Dennis

Dennis’ pregnancy speculation comes as she and her ex Thomas Ravenel continue to fight over the custody of their two children: daughter Kensie, 4, and son Saint, 3.

Dennis filed documents in Charleston, South Carolina, on Oct. 25 seeking to obtain primary custody of the two children.

In her filing, obtained by PEOPLE, Dennis accused Ravenel, 56, of relying “upon the use of full-time nannies,” referenced the sexual assault allegations brought against him and his recent arrest, and alleged he “has drunk alcohol to excess, mixed with prescription drugs, that has caused him to be impaired during periods of time in which he had custody of the children.”

Dennis also accused her ex of exhibiting “periods of impulsive and uncontrollable bouts of anger” and “extreme narcissism and anger management problems.”

Additionally, she alleged that Ravenel encouraged his on-off girlfriend Ashley Jacobs to “verbally assault and attack” her on the Bravo show.

RELATED VIDEO: Kathryn Dennis Returns From Rehab During the Season Premiere of ‘Southern Charm’

On Nov. 6, Ravenel filed a counterclaim, vehemently denying all of Dennis’ allegations and accusing her of filing her complaint “in bad faith, for the purpose of garnering media attention, creating material for her storyline on Southern Charm and ensuring her marketability as a ‘reality TV star.’ ”

In his filing, obtained by PEOPLE, Ravenel alleged that Dennis’ attempt to seek primary custody was “for the sole and/or primary purpose” of securing her role on the show and “progressing her storyline as the ‘rehabilitated mother who regains possession of her minor children.’ ” (Dennis previously lost custody of the kids and entered rehab in 2016 after she failed a drug test. She has since earned back 50/50 custody.)

Additionally, Ravenel alleged that Dennis initiated her suit “with the encouragement, condonation and/or express or implied permission of the producers of Southern Charm, for the purpose of providing dramatic material for the next season.”