January Jones has announced that she's pregnant.
The Mad Men actress' representative told People that she was due to give birth this autumn.
"January Jones is happy to announce that she is expecting her first child this fall," the rep said.
It is not known who the father is but a source apparently revealed that the 33-year-old actress was looking forward to being a single mother.
January can next be seen alongside Michael Fassbender in X-Men: First Class, while the fifth series of Mad Men is due to start this year.
In an interview earlier this year, the actress said she didn't mind the single life.
She said: "I don't like living with other people. I don't mind being alone.
"I just don't really have a lot of time or energy to put into a relationship when nothing's going to happen."