In the photo's caption, the television host and singer expressed gratitude for God and his wife, especially for the "biggest life-changing experience" he has had for the past few days.
"[I] can't thank God enough for blessing me with my AMAZING wife. I will do anything for you, my love," he wrote. "I'm so thankful for what you've done and sacrificed and continue to recover from."
"You are my Queen but I will always remember that God comes first and you're next! Amari is such a beautiful gift we got from God. I love you both so so so much," he added.
However, in the comments section, a netizen reacted to Billy posting Coleen's breastfeeding photo online, asking if he could have just posted another photo instead.
"This to me is the most natural and beautiful pic of a mom and child. All love," Billy answered back.
The photo got more mixed reactions in the comments section, with some saying that the position of the baby breastfeeding to Coleen might result in suffocation.
Others defended the photo, saying there is nothing wrong with posting a picture of a mother breastfeeding her child.