Big Bang Theory star Simon Helberg must have had a big bang of his own, if you know what we mean! He and his wife, Jocelyn Towne, have a baby on the way.

The 33-year-old — who plays Howard Wolowitz on the hit CBS sitcom — couldn't really contain the news at the Screen Actors Guild Awards on Saturday, January 18 — considering Jocelyn bore a significant bump under her flowing gray gown.

"Yes, my wife is [pregnant]. I can't take all the credit," Simon told Entertainment Tonight (per Us Weekly) on the red carpet.

It'll be the second child for the spouses of seven years — and the second time Jocelyn has had to walk down the SAG Awards red carpet while pregnant!

"Every time I come to the SAG Awards there's something about this night," he joked. "About eight months before, I get really the urge, I feel the romance, and then we get nominated so it's hand in hand."

(Simon has yet to take home the prize but did earn a 2013 Critics' Choice Award for his work on the show!)

The couple's first child is Adeline, whom they welcomed in May 2012. Simon and Jocelyn married five years prior, in 2007.

Congrats to the growing family!

Source: Entertainment Tonight via Us Weekly

Dan Clarendon is an assistant editor at Wetpaint Entertainment. Follow him on Twitter and Google+!