Josh and Anna Duggar Expecting a Baby Boy!

Credit: TLC/Scott Enlow

The Duggar family just keeps getting bigger!

Josh Duggar and his wife, Anna, will welcome their second child June 19, a rep for TLC confirms to UsMagazine.com. The baby boy will join older sister Mackynzie, 17 months.

"They share the news with the family with a special surprise on tonight's episode of 19 Kids and Counting at 10/9c," the rep adds.

Josh, 23 -- the eldest son of Jim Bob, 44, and Michelle, 43 -- wed Anna, 22, on Sept. 26, 2008 at the Buford Grove Baptist Church in Hilliard, Fla., after meeting at a home-schoolers' conference in 2006.