Chris & Katherine's - Baby Bliss!

Something was up. On July 22, passersby couldn’t help but notice Katherine Schwarzenegger outside an L.A. medical center.

“At first, she seemed super excited. She was smiling and touching her stomach. But after she noticed that people were looking at her, she suddenly got very coy and quickly made her way to her car,” says an onlooker, noting that the normally pin-thin 29-year-old appeared to be sporting a tiny bump. “She also seemed to be glowing. Everyone who saw her was buzzing that she could be pregnant.”