The Oscar-winning "Monster's Ball" star is engaged to actor Olivier Martinez. She has a 5-year-old daughter from a previous relationship.
"I feel fantastic. This has been the biggest surprise of my life to tell you the truth," Berry told CNN of her second pregnancy, which was first reported in the media last week. "I thought I was kind of past the point where this could be a reality for me. So it's been a big surprise and the most wonderful."
Berry said she does not know the baby's gender.
Exploding whale video goes viral on Internet
Selena Gomez drops F-bomb, walks off stage during Jingle Ball performance