Stephen Lovekin/Getty
September 16, 2011

January Jones welcomed her first child this week—son Xander Dane Jones. The Mad Men actress announced her pregnancy back in April, choosing to keep her baby's sex under wraps until the big day. She has not released the name of the father. Congratulations to the new mom!

Plus, remember January's maternity style by clicking through the gallery now!

MORE:Hollywood’s Newest MomsBest Dressed Pregnant CelebritiesThe Latest Baby NewsCeleb Mom Style 

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