Model Chrissy Teigen (L) and recording artist John Legend attend A+E Networks "Shining A Light" concert at The Shrine Auditorium on November 18, 2015 in Los Angeles, California.

Model Chrissy Teigen (L) and recording artist John Legend attend A+E Networks “Shining A Light” concert at The Shrine Auditorium on November 18, 2015 in Los Angeles, California.

*Chrissy Teigen wished her husband, John Legend, a happy birthday on Monday (Dec 28) with an Instagram post in which she also admitted thinking he was turning 38, not 37.

“Another year with you has flown by and I am so proud of what you’ve accomplished. Every year, I wonder how things can even get better but you always find a way. Happy *37th* birthday to the most wonderful, hard-working, loving being I, and anyone who has ever met you, have ever known. We love you, my handsome old man,” she wrote alongside an image from a past photo shoot. “Also,” she added, “I’m sorry I thought you were 37 all year.”

Legend got an early birthday present in October when Teigen announced she is expecting their first child. “John and I are so happy to announce that we are pregnant 🙂 As many of you know, we’ve been trying to have a baby for a while now. It hasn’t been easy, but we kept trying because we can’t wait to bring our first child into the world and grow our family,” she shared on Instagram.

Teigen recently announced they’re expecting a baby girl.