Steve Granitz/WireImage.com 1 / 5
Steve Granitz/WireImage.com 1 / 5

"Mad Men" star January Jones is pregnant with her first child.

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The 33-year-old actress, who plays Betty Draper on the hit TV drama, will welcome a baby later this year, but she has yet to name the father.

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A spokesperson for the star tells People.com, "January Jones is happy to announce that she is expecting her first child this fall."

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Jones was previously linked to Ashton Kutcher and singer Josh Groban before embarking on a romance with Saturday Night Live funnyman Jason Sudeikis last summer. The couple ended its relationship in January.