Did Beyonce already have her twins?

BEYONCÉ might be in labor as we speak . . . or, for all we know, she's already had her twins. 

None of this is confirmed, but there's a bunch of talk on the World Wide Web of Gossip that she was taken to an L.A. hospital in a fleet of Escalades Tuesday night . . . and an entire floor of said hospital was been cleared out just for her.

Meanwhile, the "New York Daily News" says DJ KHALED was overheard telling people the babies are already here . . . and an employee at JAY Z's 40/40 Club says they had a boy and a girl.