In a photo posted to Instagram on Sunday, Teigen wrote that the couple was "drowning in his little peeps and nuzzles."
Teigen announced baby Miles' arrival last week over Twitter, writing "Somebody's herrrrrrre!" with a pair of baby bottle emojis. A day after his birth, Teigen tweeted that baby Miles was born a few weeks before his June due date. She also shared that he has the same nose as older sister Luna, who was born in April 2016.
In an interview with Ellen DeGeneres, Teigen spoke of how difficult it was for her and Legend to pick out a boy's name.
According to the Social Security's database on baby names, Miles was number 110 in popularity in 2017.