Jessica, 27, and Cody, 33, popped a giant black balloon during a Monday brunch while surrounded by their family and closest friends. As shown on Instagram Live, pink confetti exploded from the balloon and everyone cheered.
"ITS A GIRL!!!" Jessica captioned a sweet photo of the smiling couple on Instagram after learning the big news.
Cody also shared a series of images from the brunch on Instagram in which his six-year-old daughter Paisley from a previous relationship can be seen crossing her arms in the background.
"Paisley wanted a brother..." Cody wrote alongside the photos.
The couple said, "I do," during an outdoor ceremony at The Chateau Le Dome at Saddlerock Ranch on Sunday, according to People, and Jessica called the romantic black-tie affair with some Texas flair a "daydream."