Sheer baby bliss! Beaming Halle Berry displays her blossoming pregnancy figure in a black transparent top and skin tight leather trousers

PUBLISHED: 18:43, 10 April 2013 | UPDATED: 19:11, 10 April 2013

She may only be reportedly in the early stages of the second trimester of her pregnancy.

But Halle Berry's figure is certainly blossoming.

The 46-year-old displayed her tiny baby bump in a sheer black top, which was highlighted even further by a leather belt as she promoted her new movie The Call in Brazil on Wednesday.

Perfection: Pregnant Halle Berry rocked leather trousers and a sheer black top as she attended a photo call for her new movie The Call in Rio de Janeiro on Wednesday

The expecting actress glowed as she waved to fans at the Copacabana Palace Hotel in Rio de Janeiro.

And it seems that the Monster's Ball star already has maternity dressing down pat, looking effortlessly cool and polished for her photo call.

Mother-of-one Halle also rock a pair of black leather trousers and some monochrome stilettos.

Sheer baby bliss: The 46-year-old displayed her tiny baby bump in a sheer black top, which was highlighted even further by a belt

Keeping things effortless, she accessorised with some giant hoop earrings, some silver bangles and of course her engagement ring from fiance and father of her unborn child, Olivier Martinez.

Glowing with pregnancy health, Halle wore minimal make-up and gelled her hair into some sassy spikes.

The actress has been in the South America for two days now on promotional duties for her new thriller.

Glowing: The Catwoman star was simply glowing as she waved to her fans

Showing: Halle is reportedly early into her second trimester

She has travelled to several cities, getting stuck into work but also enjoying some down time.

On Tuesday it appeared as though her pregnancy cravings had kicked in as she was seen snacking on ice cream as she did a spot of shopping in Palermo, Argentina.

Halle is clearly not worrying about gaining extra pounds during her pregnancy as she treated her entourage to the cold dessert.

She could not get enough of the ice cream as she scooped it out of the little cup with a tiny pink spoon.

Daring: The actress's sheer top displayed her black bra underneath

Flawless: Halle wore minimal make-up and gelled her hair into some sassy spikes

It was food on the go as the Catwoman star got stuck into the sweet treat as she walked around the chic Buenos Aires neighbourhood.

The soon to be mother-of-two looked as trendy as ever in a black jumper which she teamed with a pair of baggy trousers.

After shopping up a storm in Tramando, she was seen exiting the high end designer shop carrying a bag full of clothes as one of her entourage held one too.

Hard working: The actress has been busy for the last couple of days promoting her new thriller in South America

Halle was in Argentina to once again promote her new film, and the star was proud to show off her prominent baby bump in a stunning one-shouldered gown as she hit the red carpet on Monday.

The purple-coloured gown highlighted her expanding middle and seemingly fuller cleavage.

As she floated down the red carpet, her burgeoning belly was in full view in the gown, which was fitted at the bust and flowed out into a long train.

Sweet treat: On Tuesday it appeared as though Halle's pregnancy cravings had kicked in as she was seen snacking on ice cream as she did a spot of shopping in Palermo, Argentina

And the proud mother-to-be drew even more attention to her pregnancy figure by cradling her tummy as she posed for pictures.

Speaking about her pregnancy the star recently said: 'This has been the biggest surprise of my life, to tell you the truth. 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.'

When asked to confirm if she was expecting a boy, she said: 'I don't know, I don't know. But [the baby is] healthy!'