January Jones announces pregnancy, doesn't reveal the father

Who went home on "American Idol" on Apr. 28? Who cares -- January Jones announced she's pregnant!

The "Mad Men" star's rep confirms to People magazine that the actress is going to be a mother. "January Jones is happy to announce that she is expecting  her first child this fall," her rep says, expecting her first child.

While Jones, 33, has yet to comment on the pregnancy, a source says, "She's really looking forward to this new chapter in her life as a single mom."

The identity of the baby's father has not yet been revealed. Jones most recently dated "Saturday Night Live" star Jason Sudeikis.

Jones' next film "X-Men: First Class" hits theaters on June 3.