The couple revealed in June that they were expecting.
"Our families are over the moon that we are finally joining the parent club," Peyton told E! News at the time. "I'm an only child so this will be the first grandchild for my parents, and they are thrilled."
"We're thrilled to be expecting," she added to People. "It's something we've wanted for a long time, and we're so excited it's finally here."
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Chris and Peyton have also since starred on the HGTV series "Going Yard" and the DIY Network show "Yard Crashers."
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