George Clooney speculates on Angelina Jolie's pregnancy

Hollywood couple Angelina Jolie and Brad Pitt didn't attend the Oscars last night - but that didn't stop speculation about the actress' latest reported pregnancy.

The pair are yet to confirm the pregnancy - but, Jolie, 32, turned up to the Independent Spirit Awards Saturday showing off her baby bump in a figure-hugging black dress - which was enough to convince pal George Clooney.

"Well, there's a lot of problems," George, 46, tells Extra. "Either it's a tremendous amount of gas which is just not likely. Really, not likely."

Meanwhile, speaking to Ryan Seacrest on the Oscars red carpet last night, Jessica Alba - another pregnant actress - revealed she plans to breastfeed her baby.

The sexy star at first refused to reveal whether she will breastfeed, telling Seacrest: "That's really personal."

But then she gave and admitted: "Yes, it's good for the baby."

Jessica, who was accompanied by fianc?e Cash Warren, refused to give her due date. She would only say: "I'm kind of keeping that secret."