Anne Hathaway already has that pregnancy glow.

The 33-year-old actress stepped out looking as radiant as ever with her husband, producer Adam Shulman, in Los Angeles on Saturday, just hours after news broke that she was pregnant with her first child.

WATCH: Anne Hathaway Is Pregnant!

The Intern star wore comfy sweatpants paired with a denim jacket over a baggy navy T-shirt that gave us a glimpse of her growing belly. Hathaway's giant grin seemed to say it all, as she held hands with her hubby while leaving the Canyon Country Store.

An eyewitness tells ET that Shulman was "being playful with Anne, jumping up and down and being silly." He was a true "gentleman," holding her hand and opening up the door as the couple got in the car to leave. Hathaway was laughing and "looked at him adoringly."

WATCH: Anne Hathaway Was an Intern After She Got Famous

"It was just the two of them," the eyewitness adds. "They looked really, really happy. Anne definitely had the pregnancy glow!"

E! first reported the news of Hathaway's pregnancy on Saturday. Rumors swirled in September that Hathaway might be pregnant after she stepped out to the London premiere of her newest film, The Intern, with what appeared to be a tiny baby bump.

While Shulman and Hathaway have yet to make an official announcement, it's pretty clear that The Princess Diaries star will be expecting a little princess or prince of her own.

Watch the video below to hear more.