When January Jones and Jason Sudeikis' six-month romance went south in January, the news barely made a ripple. "They've been on and off for a few months," a source shrugged to People, "and then the long distance kind of ended it."
But three months later, the "Mad Men" actress announced she was pregnant and "really looking forward to this new chapter in her life as a single mom." Suddenly, all eyes were on Sudeikis, who brushed off the daddy talk. Jones gave birth to son Xander in September and has yet to comment on the tot's father.