Pregnant Brittany Mahomes goes glam in blue velvet for charity event with husband Patrick Mahomes as she shows baby bump and Reveals her Delivery Date

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This bump is making its red carpet debut.

Brittany Mahomes showed off her growing baby bump in a chic velvet dress while posing for photos alongside husband Patrick Mahomes at their foundation’s gala Monday.

The star wore an asymmetrical long-sleeved Moonlight velvet dress by Maygel Coronel ($540) that featured an open-back.

The soon-to-be mom of three added open-toed silver heels and styled her hair in a loose bun while letting a few of the front pieces frame her face.

Meanwhile, the Kansas City Chiefs quarterback also got dressed up for the night out and wore a dark gray plaid suit, white button-down shirt and brown shoes.

The couple, both 29, spent the night celebrating their charity, 15 and the Mahomies Foundation, at the gala in Kansas City, Mo.

Patrick and Brittany held hands as they took the stage later that night, with Patrick putting on a show for guests by tossing a football around.

Brittany announced she was pregnant with her third child in July — it hasn’t stopped her from supporting her husband both at home and on the road.

The Kansas City Current co-owner has been seen cheering on her husband from the sidelines as the Chiefs remain the only undefeated team in the NFL.

Most recently, Brittany and her three-year-old daughter, Sterling, supported the Chiefs by wearing custom outfits featuring his jersey number, 15, at their game in Las Vegas on Sunday.

Brittany has never been one to shy away from custom outfits and has also previously worn a custom embroidered denim jacket, a $155 personalized fanny pack and even a head-to-toe red leather outfit with a blinged-out “15” necklace.

Brittany will have more matching daughter outfits to come, since she and Patrick revealed that they were expecting another girl.