The Simpson's Sister In LAX Airport

With rumors of a pregnancy swirling around her, Ashlee Simpson was spotted arriving at the airport LAX on Monday his sporting shiny, new engagement ring.

Pieces Of Me singer has found its way into the hub of travel just 10 minutes after the big sister Jessica Simpson toted her pet pooch security Daisy past flawlessly.

As previously reported by Gossip Girls, a source Us Weekly says that Ashlee and her fiancé Fall Out Boy bassist Pete Wentz is not only to marry - but also expecting their first child together. However, no representatives of the star have confirmed the story so far.

And in the midst of all of the big news in her personal life, Ashlee is also preparing for the release of his new album, Bittersweet World, in stores April 22.