January Jones Shows Off Baby Xander!

Proudly showing off her bundle of joy, January Jones debuted Xander Jones in Los Angeles, California on Tuesday (October 11).

Along with taking her young son to the set of "Mad Men," the new mom was spotted toting her little one while exiting a local office building.

January gave birth to her Xander back on September 13th, though she’s still never revealed who the father of the baby is.

Ms. Jones’ “Mad Men” costar John Slattery told press, "I've seen a picture of the baby. He's beautiful. She's in love with that boy."

January Jones' Baby's Birth Certificate: No Daddy Clues

Adamant about keeping the father of her baby under wraps, January Jones isn’t revealing any hints about the identity of the daddy.

News sites anxiously awaited the release of the “Mad Men” beauty’s new baby’s birth certificate - which was revealed last Friday.

E! News managed to get ahold of the public document, but in the spot where the father’s name usually goes, Ms Jones opted to keep it completely blank.

January’s baby, Xander Dane Jones, was born back on September 13.