Pregnant Alba 'took a tumble at Oscars'

Jessica Alba has revealed that she had a narrow escape after falling over at the Oscars.

The actress, who is expecting a baby with fiancé Cash Warren, said she was relieved that paparazzi had failed to spot her tumble on Sunday night.

She wrote online: "I did have a stumble backstage outside of the green room. Cash caught one arm, the other hit the floor.

"Luckily all the photogs were taking pics of Cameron D."

The 26-year-old is rumoured to be expecting twins.