Berry finally got a positive result with the 35th at-home pregnancy test, reports The Sun.
She also told Oprah that she was hoping to give the baby a brother or sister to play with soon.
Berry confirmed her pregnancy earlier this month when she e-mailed Access Hollywood anchor Nancy O'Dell and told her that she and her 31-year-old model boyfriend will become proud parents in 2008.
"Yes, I am three months pregnant. Gabriel and I are beyond excited, and I've waited a long time for this moment in my life. Now, the next seven months will be the longest of my life!" she said at the time.
Berry and Aubry first met in November 2005 while shooting a Versace ad in Los Angeles and have been going strong since.