The tiny tot is the couple’s second child together, joining two-year-old big sister Isabelle.
According to reports, Caleb was born on October 5.
Kerry and her NFL player hubby have been dating since 2012 and eventually tied the knot in a super-secret ceremony in June 2013.
The actress memorably showed off her baby bump at the Emmy Awards earlier this year, where she sported a cutout Brandon Maxwell dress that accentuated her gorgeous figure.
Posing for the September issue of InStyle magazine, the 39-year-old opened up about how, despite her level of success, she was taking a step back from the public eye in preparation for the arrival of her second child.
“You arrive at a certain place of achieving and suddenly you feel like your goals are being dictated by other people,” she revealed.
“Right now, as I get ready for this second baby, it’s really about me being in touch with what I want.”
As for juggling her work responsibilities with her growing family, the star has previously revealed she looks to Scandal creator Shonda Rhimes (a mother-of-three) for inspiration.
“I’ve really leaned heavily on my boss’ experience. I consider myself busy, but Shonda has about four or five shows, three kids … She says, ‘if you feel like you have just the right amount of help, then you don’t have enough.’
“My therapist said this too. You need a lot of support. Not just logistically, but emotionally and spiritually.”