United Kingdom, May 9 -- Hailey Bieber is pregnant.

The 27-year-old model and her husband Justin Bieber are expecting their first child together, with the couple revealing the news via Instagram.

Hailey is seen showing off her growing baby bump in a series of photos taken while they renewed their wedding vows.

Among a series of behind-the-scenes snaps, Hailey is seen wearing a white, lace dress that highlights her baby bump while Justin, 30, takes a photo of his wife.

The loved-up couple - who have been married since 2018 - have never made any secret of their desire to have children one day, and a source has revealed that Hailey and Justin are both "thrilled" by the news.

The insider told 'Entertainment Tonight': "Hailey and Justin a...