Patrick Mahomes' Fiancée Brittany Matthews Shows Off Her Growing Baby Bump in Game Day Snap

Patrick Mahomes and Fiancée Brittany Matthews Expecting Their First Child: 'Small Detour to the Wedding'

The longtime couple got engaged earlier this month

Patrick Mahomes had an extra special cheering section for his most recent game!

On Sunday, as the Kansas City Chiefs faced off against the Las Vegas Raiders, Mahomes' pregnant fiancée Brittany Matthews was on hand at Arrowhead Stadium to support the quarterback — and show off her baby bump.

In one sweet photo from the game, Matthews stands in profile while cradling her stomach with a big smile on her face. In addition to wearing a black form-fitting Balance Athletica skirt, the personal trainer also donned a white t-shirt that was covered with her fiancé's last name.

Brittany Matthews/Instagram. Inset: Matthew Eisman/Getty Patrick Mahomes and Brittany Matthews

Other photos, which all appeared to be taken in a private room, showed her posing with loved ones at the game, including Mahomes' younger brother Jackson. "Bumpin' & vibin' with my people❤️," she captioned the slideshow.

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RELATED: Patrick Mahomes and Pregnant Fiancée Brittany Matthews Slept in Separate Bedrooms After COVID Scare

Mahomes and Matthews, both 25, first revealed their happy pregnancy news last month.

"Mom & Dad, taking a small detour to the wedding❤️," Matthews wrote on social media, alongside a photo showing her holding up a sonogram as the NFL star hugs her belly.

Just weeks earlier, the longtime couple — who have been together since high school — celebrated another special milestone when Mahomes popped the question.

RELATED VIDEO: Patrick Mahomes and Pregnant Fiancée Brittany Matthews Slept in Separate Bedrooms After COVID Scare

Patrick Mahomes and Pregnant Fiancée Brittany Matthews Slept in Separate Bedrooms After COVID Scare

“I'm doing my part to keep away from her and social distance whenever stuff like this arises," Patrick Mahomes said

When it comes to his baby on the way, Mahomes has said that he doesn't care about whether his first child is a boy or a girl.

"I'm just super excited to hopefully have a healthy baby and some I'll be able to love for the rest of my life," he said during a September appearance on local station 610 Sports Radio's The Drive.

"I'm just excited for the future ahead of being able to keep building and keep becoming a better person for my family and this world," he added.

Brittany Matthews/Instagram Brittany Matthews and Patrick Mahomes

RELATED: The Most Romantic Photos of Patrick Mahomes and Brittany Matthews Through the Years

And as for whether Matthews is more excited about her pregnancy or her engagement, she recently told PEOPLE that both milestones are "such blessings."

"We did things a little out of order, but everything happens for a reason," she said. "Both of them are such blessings — so we're excited for both.”