Protective mother Cobie Smulders steps out with her new baby wrapped up under her coat after revealing she gave birth just three weeks ago

She has only just revealed that she gave birth to her second child three weeks ago.

So, given Cobie Smulders' knack for keeping things a secret, it's no surprise she wanted to keep her newborn under wraps as she arrived at Los Angeles International Airport on Wednesday.

The 32-year-old landed in LA after appearance at the Sundance Film Festival in Utah, and kept her baby well and truly protected under her large coat.

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Protective: Cobie Smulders stepped out with her newborn well and truly wrapped up under her coat as she arrived at Los Angeles International Airport on Wednesday

Protective: Cobie Smulders stepped out with her newborn well and truly wrapped up under her coat as she arrived at Los Angeles International Airport on Wednesday

The How I Met Your Mother star had stunned everyone when she revealed her news rather casually during an interview about her new movie Unexpected on Sunday.

While discussing the film - which follows the story of two women who find themselves pregnant at the same time - she said: 'I’m in Sundance and I have a three week old baby, so I can certainly relate [to the film's theme]'.

'It’s my world at the moment, and it’s just so prevalent in the world today,' she explained. 

Happy parent: The mother-of-two - who only gave birth three weeks ago - was in good spirits as she arrived fresh-faced with a pal

Happy parent: The mother-of-two - who only gave birth three weeks ago - was in good spirits as she arrived fresh-faced with a pal

Style winner: Despite having a three-week-old, Cobie managed to put on an impressive sartorial display in her red and black houndstooth printed coat, skinny jeans and khaki hat

Style winner: Despite having a three-week-old, Cobie managed to put on an impressive sartorial display in her red and black houndstooth printed coat, skinny jeans and khaki hat

And on Wednesday, she made her first appearance since announcing her baby news to the world, keeping her infant close as she wrapped her red and black oversized houndstooth jacket around her body.

Looking remarkably fresh-faced for a mother with a newborn, she also appeared to be going make-up free but covered up in a wide-brimmed khaki hat, keeping her brunette tresses down in a wavy style.

She finished her jet-set look with a pair of flattering skinny jeans and lace-up trainers.

Doting mother: The actress kept her baby close as she made her way through the terminal after her appearance at the Sundance Film Festival in Utah

Doting mother: The actress kept her baby close as she made her way through the terminal after her appearance at the Sundance Film Festival in Utah

Surprise: Cobie dropped the bombshell that she welcomed her second child just three weeks ago while at the film festival and discussing her new movie, the aptly-titled Unexpected

Surprise: Cobie dropped the bombshell that she welcomed her second child just three weeks ago while at the film festival and discussing her new movie, the aptly-titled Unexpected

Baby bump: The How I Met Your Mother star looked relaxed as she cuddled close to her infant

Baby bump: The How I Met Your Mother star looked relaxed as she cuddled close to her infant

She was clearly in great spirits and revelling in her baby joy as she smiled while chatting to a companion while making her way through the terminal. 

Cobie had impressed on the red carpet at Sundance, showing off her slimline post-pregnancy figure, leaving onlookers surprised that she was pregnant just three weeks beforehand.

The mother-of-two looked refreshed and pretty in her short skirt and t-shirt tucked in to show off her slender waistline, not giving so much as a hint to her recent pregnancy.

The Avengers star has yet to reveal any more details about her child's gender or name.

She only revealed she was expecting her second child with husband Taran Killam back in October, and previously admitted she didn't want to discover the sex of her baby until the birth.

The couple tied the knot in 2012 and also have a five-year-old daughter together, Shaelyn.

Looking great: Cobie  revealed her post-baby body on Sunday at the Sundance Film Festival just three weeks after giving birth to her second child

Looking great: Cobie revealed her post-baby body on Sunday at the Sundance Film Festival just three weeks after giving birth to her second child

New arrival: Cobie, pictured here with husband Taran Killam in March 2014, only told the world they were expecting their second child in October

New arrival: Cobie, pictured here with husband Taran Killam in March 2014, only told the world they were expecting their second child in October

 

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