halle berry storm*Halle Berry, expecting her first child with fiance Olivier Martinez, suited up again as Storm on the set of director Bryan Singer’s, “.”

The 46-year-old actress wore a blonde wig and black leather costume that concealed her tiny baby bump with a strategically placed utility belt.

Berry — already mom to daughter Nahla, 4, with model ex Gabriel Aubry — announced her second pregnancy Apr. 5. “This has been the biggest surprise of my life, to tell you the truth,” Berry told CNN of being pregnant again. “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.”

“X-Men: Days of Future Past” is slated for a July 18, 2014 release.