At the Guardians of the Galaxy premiere in Los Angeles on Monday, the Star Trek actress appeared to let her dress - which included a sheer floral top half, a shimmery skirt and a T-shaped belt - do the talking as she looked to have a blossoming baby bump.
Zoe Saldana let her dress do the talking on Monday
Her publicist later confirmed the news to The Hollywood Reporter.
The happy couple managed to keep their nuptials a well-guarded secret from the public eye, but an insider confirmed the news in September.
Zoe Saldana at the Guardians of the Galaxy premiere
"It was super small but very romantic and beautiful," a source told Us Weekly, adding that the couple had "known each other for a long time" and had "great chemistry".
Zoe was previously engaged to actor Keith Britton, but they split after 11 years together. She was then in an on-off relationship with Bradley Cooper which ended in January 2013, but the couple looked to be on friendly terms as they shared the Guardians of the Galaxy red carpet together.
The actress, who also starred in the box office smash Avatar will be expecting another international hit in Marvel's latest which is released in the UK on 31 July.
Zoe Saldana and Marco Perego at the Cannes Film Festival