Campbell posted a picture on Instagram Friday with Feild and their six-year-old son Caspian pushing a baby stroller down a sidewalk — taken moments after the adoption was made official.
The actress says she’s kept the adoption news under wraps for the past five months.
“It’s been a secret up until now as JJ and I wanted to wait until it was official,” Campbell wrote. “I’ve been dying to share the news with all of you.”
The family is thrilled with the new addition.
“We are madly in love with him,” wrote Campbell, adding that Caspian “is over the moon and asks every morning, ‘Can I hold my baby? Can I feed my baby? Can I play with my baby.’ It’s the most incredible thing we’ve experienced.”
Campbell says she gives thanks daily to the birth parents “for such an incredible gift.”
“We’re so grateful for this beautiful light coming into our lives,” Campbell wrote.