"That smile!" Jessica, 28, captioned a photo on Monday of Cody sweetly grinning at their baby on the couch without a shirt on. "Brb. Going to make more babies."
Cody announced Maverick's March 17 arrival -- which was nearly a month before her due date -- on Jessica's "Now What?!" podcast, according to Us Weekly, and he described how she had high blood pressure and therefore underwent an emergency C-section.
"After all the prep and everything, 15 minutes later on St. Patrick's Day, our little bundle of joy arrived," Cody reportedly said at the time.
Jessica then revealed nine days later she had already lost 18 pounds of her baby weight, Us reported.
Jessica and Cody met and fell in love on Season 19 of Big Brother in 2017 and then got engaged on February 13, 2018 shortly after winning the $1 million prize on The Amazing Race's 30th season.
The couple then announced they were expecting Baby No. 1 together in September 2018. Cody, however, also has a daughter Paisley from a previous relationship.