Blake Lively and Ryan Reynolds have become first-time parents.
The 27-year-old actress delivered the couple's baby just before the New Year, a little earlier than expected, in New York.
Representatives for the couple have yet to confirm the happy news, first reported by PageSix.com.
Details of the baby's sex and name have not been released.
Lively announced her pregnancy on her lifestyle website, Preserve, and Reynolds has been vocal about his excitement.
He told People magazine last year (14), "I’m just excited about having a buddy. For a lot of new dads, you tend to dwell on the mistakes you don’t want to make. I’m at that stage still where I’m focused primarily on being open and understanding and leaving a lot of room for error."