Actress Halle Berry is calling her second pregnancy a "miracle." During a charity event at the 20th Annual Entertainment Industry Foundation/Revlon Run/Walk event for women with cancer Berry opened up to "Entertainment Tonight" about becoming pregnant with her second child at the age of 46.

"I'm thinking that this is a miracle," Berry said. "I feel really happy. It's one of the best things that happened in my life, for sure."

Berry, who has a five-year-old daughter named Nahla, announced in April that she and her fiancé Oliver Martinez were expecting.  The couple is expecting a boy and will welcome the baby this fall, her rep told "Entertainment Tonight."

In an interview with People magazine, that before she knew she was pregnant her daughter would always pray for a sibling.

"Every night we do our prayers," she told the magazine. "She says 'God, please bring me a bunk bed and a baby sister.' And I say, 'I can do one of those things, I know for sure. The other, we've got to keep praying on.'"

With her second pregnancy Berry told the magazine she wanted to have a healthy nine months just like she did when she was pregnant with Nahla.

"My pregnancy was amazing, I was happy that whole time. I felt good, I had energy, I was like Superwoman," she told People. "I wish I could feel like that for the rest of my life, that's how fantastic it was."

The Oscar-winning actress and French actor Martinez have not decided on a wedding date yet but a source told Radar Online that Berry is "very serious about this marriage."

"Oliver has become her rock," the source told Radar. "Deciding to marry again is huge for Halle. But friends have never seen her this happy and fulfilled."