Jamie-Lynn Sigler Expecting First Child

"The pregnancy was a shock," a source told Life & Style. "She just told the cast and crew of ‘Guys.’"

Sigler and baseball player Dykstra announced their engagement on January 28 after dating for nearly a year.

"It’s hard for me to find a sound bite about Cutter," Sigler recently told Life & Style. "I think the one thing I could say and the only thing I will say is that I would wish for any girl in the world to find their Cutter."