Bumping right along! Pregnant Olivia Wilde grabs a smoothie at Earth Bar following a sweaty prenatal workout

Olivia Wilde just revealed she's expecting a baby boy in May with fiancé Jason Sudeikis.

And the pregnant 29-year-old was spotted grabbing a healthy smoothie at Earth Bar in West Hollywood Friday.

The Drinking Buddies starlet - born Cockburn - was all puffed out as she emerged from the cafe following a strenuous prenatal workout.

Post-workout cool down: Pregnant Olivia Wilde was spotted grabbing a healthy smoothie at Earth Bar in West Hollywood Friday

Post-workout cool down: Pregnant Olivia Wilde was spotted grabbing a healthy smoothie at Earth Bar in West Hollywood Friday

Olivia was literally dripping sweat in her grey Aztec-print tank-top over matching capri leggings and pastel trainers.

Make-up free Wilde scraped her ombré locks into a messy ponytail as she displayed her growing baby bump.

Last Sunday, the TRON: Legacy starlet glittered in a green sequin Gucci gown as she presented at the Golden Globe Awards.

'Hahaaaa I just heard someone say I looked like a giant, walking pickle last night at the Globes. As a pickle enthusiast, I thank you,' she tweeted to her 1.2 million followers.

Growing bump! The expecting 29-year-old - born Cockburn - was literally dripping sweat in her grey Aztec-print tank-top over matching capri leggings and pastel trainers
Growing bump! The expecting 29-year-old - born Cockburn - was literally dripping sweat in her grey Aztec-print tank-top over matching capri leggings and pastel trainers

Growing bump! The expecting 29-year-old - born Cockburn - was literally dripping sweat in her grey Aztec-print tank-top over matching capri leggings and pastel trainers

Staying fit: The Drinking Buddies starlet - born Cockburn - was all puffed out as she emerged from the cafe following a strenuous prenatal workout

Staying fit: The Drinking Buddies starlet - born Cockburn - was all puffed out as she emerged from the cafe following a strenuous prenatal workout

Dressed for action: Make-up free Wilde scaped her ombré locks into a messy ponytail as she displayed her growing baby bump

Dressed for action: Make-up free Wilde scraped her ombré locks into a messy ponytail as she displayed her growing baby bump

Olivia accessorised her glamorous maternity look with matching Charlotte Olympia pumps, an Emm Kuo clutch, and a Forevermark ring.

'He was kicking the whole time, going, "Where are we?"' she told People magazine.

'Until about a week ago, I just looked fat. I wanted to be like, "I'm not fat, I'm pregnant!"'

Maternity glamour: Last Sunday, the TRON: Legacy starlet glittered in a green sequin Gucci gown as she presented at the Golden Globe Awards

Maternity glamour: Last Sunday, the TRON: Legacy starlet glittered in a green sequin Gucci gown as she presented at the Golden Globe Awards

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'I just heard someone say I looked like a giant, walking pickle': Olivia accessorised with matching Charlotte Olympia pumps, an Emm Kuo clutch, and a Forevermark ring
'I just heard someone say I looked like a giant, walking pickle': Olivia accessorised with matching Charlotte Olympia pumps, an Emm Kuo clutch, and a Forevermark ring

'I just heard someone say I looked like a giant, walking pickle': Olivia accessorised with matching Charlotte Olympia pumps, an Emm Kuo clutch, and a Forevermark ring

And Wilde - a Star Wars fan - discovered a clever way to remember her son's due date.

'May the fourth be with you,' she told Ryan Seacrest. 'It's great — I've never had boobs before!'

Not seen Friday was the gorgeous funnywoman's future husband.

Olivia and Jason were last photographed together on Monday when they had a lunch date at Hugo's in West Hollywood.

'May the fourth be with you!' Not seen Monday was Wilde's fiancé Jason Sudeikis, who was last pictured with Olvia at a basketball game on January 18

'May the fourth be with you!' Wilde just revealed she's expecting a baby boy on May 4th with fiancé Jason Sudeikis

The House actress can currently be seen in Spike Jonze's Her with Joaquin Phoenix, Amy Adams, and Scarlett Johansson.

The in-demand star will also appear in the drama Black Dog, Red Dog with James Franco, Whoopi Goldberg, and Chloe Sevigny.

And Wilde will star opposite Jane Fonda and Sam Rockwell in the dramedy Better Living Through Chemistry - due out February 9.

In theatres now! Olivia can currently be seen in Spike Jonze's Her with Joaquin Phoenix, Amy Adams, and Scarlett Johansson

In theatres now! Olivia can currently be seen in Spike Jonze's Her with Joaquin Phoenix, Amy Adams, and Scarlett Johansson

Mazel tov! The in-demand starlet will also appear in the drama Black Dog, Red Dog with James Franco (R), Whoopi Goldberg and Chloe Sevigny

Mazel tov! The in-demand starlet will also appear in the drama Black Dog, Red Dog with James Franco (R), Whoopi Goldberg and Chloe Sevigny