Jessica Alba Pregnant as Hollywood Baby Boom Grows

(CBS) Jessica Alba is going to be a mom again.

The actress is expecting her second child with husband Cash Warren, she announced Wednesday.

PICTURES: Celebrity Baby Bumps
PICTURES: Jessica Alba

"It's been a while since I've been on FB & I thought I'd drop by to let you all in on some exciting news," she wrote on her Facebook page. "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. Have a great day! Jess"

Warren posted on his Twitter account, writing, "@jessicaalba are beyond excited about the news! Honor is going to be a great big sister. Thank you all for the wonderful messages!!"

The couple welcomed their first daughter, Honor Marie, in June 2008, a month after they married.