The couple welcomed Dusty on September 21 after tying the knot in Mexico in 2014.
Shortly after their wedding, the Maroon 5 rocker opened up about wanting a big family.
"I want to have 100 kids. I want to have more kids than would be socially responsible," he told Us Weekly. "I don’t know when we’re going to do it. We can’t do it right now. I think it’s absolutely in the works for some future date."