Actress Jessica Alba announces second pregnancy on Facebook

The 29-year-old actress and her producer husband Cash Warren, 32, already have a two-and-a-half year old daughter, Honor

In the message to fans, she wrote 'I thought I'd drop by to let you all in on some exciting news - Honor is going to be a Big Sister!

'Cash and I are thrilled and wanted to share the news directly with you so you didn't hear about it somewhere else.

'I appreciated all of the love and support you all gave me during my first pregnancy and will definitely appreciate it again this time around.'

The actress attended the Baftas last Sunday night, wearing a flowing blue gown which disguised any hint of a baby bump

Jessica and Cash met on the set of The Fantastic Four in 2004 and got engaged three years later after learning of her surprise pregnancy.

They wed at the Beverly Hills courthouse in May 2008 and welcomed their daughter at the Cedars-Sinai Medical Centre in Los Angeles two months later.

Jessica Alba has revealed how motherhood has changed her focus from career to family.

'Having my daughter has certainly shifted my priorities.”

The actress, whose recent films include Little Fockers and The Killer Inside Me, has just wrapped the adventure comedy, Spy Kids 4: All the Time in the World.