Congrats to Andres and Lauren Santo Domingo, who welcomed a healthy baby boy yesterday afternoon. Lauren, a Vogue contributing editor who recently launched her own luxury fashion shopping Web site, Moda Operandi, and baby are doing well. The couple have been married since 2008, and this is their first child. Lauren recently told fashion site intothegloss.com that her pregnancy went smoothly — “I’m 8½ months pregnant and not much has changed. It’s been pretty easy, I haven’t had any sickness . . . I’ve been really, really lucky.”