Blake Lively and Ryan Reynolds baby bound

Blake Lively and Ryan Reynolds are expect their first child. Photo / Getty Images

US actress Blake Lively and her actor husband Ryan Reynolds are expecting their first child together.

The former Gossip Girl star announced her pregnancy by posting a picture of herself showing off her baby bump on her lifestyle website, Preserve.

In the snap, Lively cradles her bulging belly as the sun beams down on the blonde beauty.

Lively dedicated the latest installment in her blog to expectant mothers and family.

"The entire next month will be sprinkled with highlights for women in this exciting chapter of their lives. Congratulations to all the expecting mothers out there," she wrote.

Lively married Reynolds in 2012. He was previously married to Scarlett Johansson.

- WENN