"Yes, I am three months pregnant," Berry wrote to the presenter Nancy O'Dell. "Gabriel and I are beyond excited and I've waited a long time for this moment in my life."

Halle Berry, who is 41 years old, has been dating the Canadian model Gabriel Aubry, 31, since 2005, when they met in a fashion shoot for Versace.

Berry, who won an Oscar-award in 2002 for her role in Monster’s Ball, has been married twice. In 1992 she married the baseball player David Justice, but they divorced four years later.

In 2001 the star of Gothika and Perfect Stranger married his second husband, the musician Eric Benet, but they divorced in 2005.

Earlier this year, Halle Berry said she is decided to not marry again. "I will never, never get married again," she recently told InStyle. "Actually, it's just that now I've come to a place where I think two people can share their lives without the ring, without the piece of paper."

Berry has previously admitted that she was desperate to have a child and is ready to consider adoption or even artificial insemination.

Last year, she told US talk show host Oprah Winfrey: "If there's no serious man in my life, whoever I'm dating at the time, I'll say, 'Hey, would you like to have a baby?'"

This year Berry told again that she wants children, this time to Access Hollywood. "I need something even more profound than [working on movies], and that's family...that's children. I need that like the air to breathe these days, and I'm ready."

The first rumors about a possible pregnancy have emerged after the producers of her next movie, Tulia, has delayed the start of filming at a later date.

The movie, due for release in 2008, is be directed by John Singleton and Halle Beery will play together with his partner form Monster’s Ball, Billy Bob Thornton.