Arrival Date: August 29, 2013 It's...a boy! And baby makes...three! This is the first child for the couple, who married in January 2009. Birth Announcement: The happy couple revealed the news to People that their son Axl Jackweighed in at 7 lbs., 10 oz. In February, Duhamel dished to iVillage about what kind of dad he will be. "I probably will be a bit of a disciplinarian," he said. "But at the same time, my kids -- we'll have a lot of fun."