John Stamos expecting his first child with fiancée Caitlin McHugh|Celebrity News

John Stamos expecting his first child with fiancée Caitlin McHugh|Celebrity News John Stamos expecting his first child with fiancée Caitlin McHugh The 54-year-old "Fuller House" actor revealed to People's Editor-in-Chief Jess Cagle that he and fiancée Caitlin McHugh are expecting their first child together, and the beloved star couldn't be more excited about the news The look on John's face when I told him we were pregnant was priceless," McHugh told People. "It was the look of a man who has wanted a family of his own, but wasn't sure it was going to happen for him. Now it is!"