Justin Bieber and model wife Hailey have announced they are expecting their first child in a social media post shared with excited fans on Thursday. The Canadian pop star, 30, and model wife, 27, shared a montage of photo shoot snaps showing Hailey in her wedding dress with a baby bump. The two have been married since 2018 and the pregnancy is their first. They’ve talked candidly about their plans to become parents several times in the past couple of years. Hailey stated earlier this year she and the Baby singer would like to try for a family “in the next couple of years”. Speaking to WSJ, she…