Haylie, the older sister of actress Hilary Duff, and Matt announced they were expecting in December.
This is the first child for the couple, who got engaged in April 2014. The couple had reportedly put off wedding planning to prepare for the arrival of their baby.
In March, Haylie and her family celebrated the upcoming new addition with a baby shower. Haylie took to Instagram to post a sweet photo of her growing baby bump with the caption, "30 day countdown!"
Congrats to the happy family on their brand new bundle of joy.
For more adorable baby news, check out the video below to see some of the cutest celebrity pregnancy announcements ever.