Denise and Richie ENGAGED? She's totally pregnant if so.

Denise Richards arrived at LAX yesterday sporting a ring on her left ring finger, leaving everyone wondering if she and her boyfriend, Richie Sambora, are engaged. Richards, who is in the middle of a bitter divorce from Charlie Sheen, flew in from France after spending time with Sambora while he's on tour with Bon Jovi. Sambora is also in the middle of divorce from Heather Locklear - Richards' former best friend.Don't get too excited, however, sources tell TMZ she is not engaged. But this could possibly be a foreshadowing of what's to come once all the divorces are finalized.... only time will tell. Richards flew back to the States to perform with the Pussycat Dolls in Vegas tonight. Denise's rep declined comment. [TMZ]