The "Mad Men" star has given birth to a healthy baby boy, but details on who the father are still undisclosed.

According to January Jones' publicist, the "Pirate Radio" and "X-Men: First Class" star gave birth to a healthy baby boy named Xander Dane Jones on Thursday. The publicist added to People.com that Jones and her new son are "doing great." Controversy buzzed around Jones nine months ago when she was reportedly pregnant after filming "X-Men: First Class," and the actress has since been quiet on who the baby's father is.

Before her birth, Jones said in an interview that she is currently enjoying a 2-month break, a long vacation that most in demand Hollywood actresses don't have the luxury of getting.

"I've been enjoying a nice break. I've been in a nesting phase just preparing my house and stuff. I've had the luxury of a couple months off, "says Jones in a past interview for Big Pond News. Jones also mentioned that she is unlike any other pregnant woman who experiences sudden cravings for food or scents.

"I feel great. I haven't had any weird physical side effects. I feel pretty lucky so far. Everybody is asking if I've had any odd cravings. I haven't yet. It's a bummer. I wish I had something weird to tell" added Jones in the same report. Jones didn't undergo ultrasound to know the gender of her child until she gave birth on Thursday, making the welcome more special and surprising.

"I'm having a hard time (picking a name).I'm looking for boy and girl names, obviously, because it's going to be a surprise for me." says Jones in an interview at KRQ radio just before her birth.

Also Read:

Happy 27th Birthday Prince Harry: His Best Moments in Photos

Prince Harry's Ex, Chelsy Davy, Enjoys Retail Therapy [PHOTOS]

Kate Middleton Beats Cheryl Cole as High Street Fashion Queen [PHOTOS]