If you are waiting for January Jones to have a tell-all press tour revealing the father of her son Xander, don't hold your breath.

The Mad Men star has kept quiet since the revelation she was pregnant back in 2011. Rumors of the child's father included her most recent boyfriends, most notably Ashton Kutcher, Josh Groban, and Jason Sudeikis.

She tells the New York Times that the name of the father won't be hitting the news any time soon. "That's my son's business. It's not the public's business."

Jones also revealed none other than Jack Nicholson advised her to keep her personal business quiet. "Jack Nicholson once told me: 'You should never give your personal life away, otherwise people will pick you apart. They'll never believe in your character.' 

"Women should have lots of secrets. It's our right to have secrets. Otherwise, what would we write in our memoirs?" 

Despite the secrecy concerning the child's father, Jones has happily shared some stories involving her son. "His first word was 'Mama'. His second was 'back', 'cause I kept saying, 'Put it back'."