Baby bump rumors began swirling after her appearance at the L.A. premiere of "Guardians" on Monday, and on Wednesday, Zaldana's rep confirmed the happy news to The Hollywood Reporter.
Saldana and Perego, who married in England last summer, have yet to comment on the baby news.
In January, the actress finalized a deal to star in three sequels to James Cameron's hit 2009 sci-fi epic "Avatar."
"Extra's" Renee Bargh was recently with Zoe at the "Guardians of the Galaxy" world premiere in Hollywood. The actress hid her baby bump behind her sexy Louis Vuittton outfit.
Zoe chatted about what she did during the 5 hours it took to put on her character's green make-up for the movie and teased some info about the upcoming "Avatar" sequel.