Jesse McCartney’s Wife Katie Peterson Pregnant, Expecting Baby No. 2

“We look forward to bringing him home very soon to meet his big sister Bailey, who sleeps with his blanket every night,” the couple added. “Enjoy some cute pictures of our little fighter, Archer.”

During Archer’s time in the NICU, Peterson admitted that she was “experiencing some ‘hospitalitis.’”

“It’s a weird feeling to lose all sense of your time,” the Row actress wrote on Instagram in July of last year. “To repeat the same day over and over again. To sit in fear and anxiety of not knowing what’s next.”

She added that she was grateful to “celebrate little victories along the way,” although many of them were ones she’d never expected to celebrate as a new parent, like when Archer was able to breathe room air.

“It’s a truly terrifying experience and yet wildly hopeful,” Peterson continued. “You find strength you never knew you had. If you are going through your own NICU journey I hope you find comfort that you’re not alone and you’re so strong. Your baby is lucky to have you.”

Thankfully, their baby boy left the NICU after 70 days, heading home with his parents on July 15, 2025. 

Peterson posted a sweet video of herself cuddling with Archer a few days later, writing, “There’s nothing like having you at home, Archie.”

To see the McCartneys’ glimpses into family life as well as more stars and their kids, keep reading.