Pete Davidson is entering his Dad era. Davidson, 31, and his girlfriend, actor and model Elsie Hewitt, 29, are expecting their first child together.Hewitt confirmed the reports in an Instagram post, which included a picture of a sonogram alongside the jovial caption, "welp now everyone knows we had sex." View this post on InstagramA post shared by elsie (@elsie) Story continues below advertisement According to People, the couple has been living together in Davidson's native New York City for a few months.