By Archana Ram
Updated March 17, 2010 at 05:51 PM EDT

Danica McKellar, 35, best known for her role as Winnie on The Wonder Years, is expecting her first child this fall with her husband of one year, Mike Verta, People reports. McKeller, who recently guest starred on CBS’ The Big Bang Theory, is releasing her third book, Hot X: Algebra Exposed, this August.