Breast cancer survivor CHRISTINA APPLEGATE is expecting a baby.

The Samanatha Who? star, 38, is pregnant by her fiance Dutch rocker Martyn Lenoble – nearly two years after beating the Big C.

Christina  dated the 41-year-old Porno for Pyros bassist for two years before becoming engaged on Valentine’s Day.

Christina  who was pronounced free of breast cancer in August, 2008, has said Lenoble helped her to recover after undergoing a double mastectomy.

"I’m very grateful to Martyn for coming along at a time that he did because he’s been my rock through all of this," Applegate said in an interview.

"He gave me something to really want to live for and something to smile about."