January Jones is pregnant! Who could the father be?

A rep for actress January jones has confirmed that the Mad Men and upcoming X-Men: First Class star January Jones is pregnant! Here’s what her rep told People:

January Jones is happy to announce that she is expecting her first child this fall.

That’s all we know. A friend told the magazine, “She’s really looking forward to this new chapter in her life as a single mom,” which seems to suggest that the father is not someone January is in a serious relationship with. So who could it be?!? The last dude I heard being romantically connected to Jones was celebrity chef Bobby Flay, but of course that was entirely based on rumors and an alleged sighting of the couple in Vegas together. (Oh, and a mysterious encounter between the two after an even more mysterious car crash.)

Anybody out there got and more info for us?!? (Please tell me it’s not IVF via David Crosby.)

UPDATE: In 2013 January told The Edit that she knew going into her pregnancy that she would do it alone.

“I don’t have room for anything else, so I don’t know how I would have done it with a partner. I knew I would be raising my son alone,” Jones said. “It was something I went into knowingly, I was prepared mentally – and I was excited about it.”

ABC News has speculated that the father of January’s son is down to five men: Xander Berkeley, Matthew Vaughn, Jason Sudeikis, Michael Fassbender, or Bobby Flay.

While we ponder who got their manuary really close to January, here’s a looooooooooooong last look at the always-lovely Miss Jones prior to baby bumpage taken at the 20th Annual Producers Guild Awards in January of 2009. (Photo: Nikki Nelson/ WENN.com)

January Jones can be seen as The White Queen Emma Frost in the next installment of mutant movie-making, X-Men: First Class. (CLICK HERE to see her wearing a very non-maternity-wear racy lacy costume on a retro cover from Total Film magazine!)