The "Veep" actress and former "My Girl" co-star married Shaun So in 2008.
"I'm feeling pretty good so far," the 32-year-old actress told People.com about her pregnancy. "I was really lucky -- I did not have any morning sickness which was great because I was working."
Chlumsky did not say exactly when she is due or what the baby's gender is.
Pistorius testifies he didn't consciously pull trigger when he shot girlfriend
Google buys drone maker Titan Aerospace