Jessica Alba was branded a 'slut' at school

Pregnant Jessica Alba has revealed she was once branded a 'slut' at school because of her big boobs.

The early-developing Hollywood star says she was hit with the label by a head teacher and some 'self righteous' PTA mums.

"The accusation still ricochets. They think I'm a slut?" Alba recalls in the new book 'If I'd Known Then' by Ellyn Spragins. The book is a collection of essays by female celebrities.

"Boys are awful. They are made of nothing but hormones until they're about 20 or 21," Alba writes.

"It's fun to have a crush, but don't think it's forever. And use birth control and condoms, please."

Alba, 26, is currently pregnant with fianc?e Cash Warren's baby.