The Magic Mike star has been married to Step Up co-star Jenna Dewan-Tatum since 2009.
Now, People reports that the couple are expecting their first child in 2013 - a year that Tatum has already claimed he will be using to "take a break" from acting.
The star previously said of his desire to start a family: "The first number that pops into my head is three, but I just want one to be healthy and then we'll see where we go after that."
The 32-year-old was named the Sexiest Man Alive earlier this year, an honour he informed his wife about while washing the couple's dogs.
The honour was met with approval by former Sexiest Men Alive Bradley Cooper and Ben Affleck, who both called the star "very sexy".
Watch a clip of Channing Tatum in Magic Mike below: