January Jones & Xander Visit a Friend

January Jones steps out with her newborn son, Xander, and visits a friend’s house on Tuesday (September 27) in Santa Monica, Calif.

The 33-year-old Mad Men actress was pictured for the first time since giving birth to her first child back on September 13.

TMZ obtained Xander‘s birth certificate and noted that January did not list the baby’s father’s name on the document.

January has kept mum about who Xander‘s dad is since announcing her pregnancy – a source told People that she was “really looking forward to this new chapter in her life as a single mom.”

FYI: January is using her Orbit stroller and aden + anais muslin swaddle!