Pregnant Kate Middleton enjoyed some alone time Sunday, walking by herself in the Swiss Alps, and we've got the shots for you right here on Breaking Celebrity News.

The Duchess of Cambridge, who's due to give birth this summer, showed off a bigger baby bump, clad in sunglasses, black skinny jeans and a patterned maternity top as she walked while three royal security guard trailed the lovely lady.

"She was walking down the hill with three men," an eyewitness told Mail Online. "She was very sweet and smiled at people who looked at her … she seemed to be taking in the scenery."