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Reese Witherspoon is finally talking publicly about her third pregnancy.

Responding to a reporter's compliment about her pregnancy glow, the Oscar-winning actress said, "Thanks, but frankly I'm feeling very round tonight."

Witherspoon was in Chicago to receive the Gene Siskel Film Center's Renaissance Award, but she admitted that she was trying to steer clear of the city's famed deep-dish pizza. "Maybe, but it's not easy," she told reporters with a laugh. "I'm always feeling like I'd like to eat everything in sight!"

The actress said she is "very excited" about the pending fall birth of her first child with new husband Jim Toth but politely declined to reveal either the sex or possible names for the baby.

Before the baby's arrival, Witherspoon has been busy wrapping up her latest film in Atlanta. "Devil's Knot," which co-stars Colin Firth is about a crime that occurred in 1993.

"It happened in Arkansas, and it's what I'd say is a very American story," the actress said. "And, after I finish that, I'm going to take a little time off - and go have a baby."