Halle Berry and Nahla out in Beverly Hills on Mother's Day. Credit: Lins/Splash News Online

Happy Mother's Day, Halle Berry! The 46-year-old actress, who is expecting her second child, worked her pregnancy glow while enjoying a lunch out with fiance Olivier Martinez and 5-year-old daughter Nahla on Sunday, May 12.

Berry showed off her growing baby bump in a purple tie-dye maxi dress with a low-cut neckline while heading to Riva Bella in West Hollywood. The X-Men: Days of Future Past actress held hands with soon-to-be big sister Nahla, who looked adorable in a colorful sundress, while her fiance walked ahead.

On Saturday, Berry attended the 20th annual EIF Revlon Run/Walk For Women event at the Los Angeles Memorial Coliseum. Berry briefly chatted with reporters on the red carpet about her second pregnancy. "I'm thinking that this is a miracle," she said via Entertainment Tonight. "I feel really happy. It's one of the best things that happened in my life, for sure."

Berry announced she was expecting her first child with Martinez on Apr. 5. "This has been the biggest surprise of my life, to tell you the truth," she confessed to CNN. "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."