Pregnant Chelsea Clinton has been spotted out on a festive stroll with her husband, daughter and parents Hillary and Bill as they enjoyed some family time together.

The Clintons looked to be in high spirits following the news that Chelsea is expecting a second child, with the family smiling and waving at passers-by during their walk through Manhattan on Sunday.

Chelsea, who grinned as she pushed along one-year-old Charlotte in a buggy, hid any signs of a baby bump with a long, gray coat and orange scarf.

Her jacket was outdone by her mother, who sported a vibrant coat she bought in Afghanistan in 2003 which was embroidered with flowers.

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Pregnant Chelsea Clinton (left) has been spotted out on a festive stroll with her husband, daughter and parents Hillary (right) and Bill (back left) as they enjoyed some family time together

Happy: The Clintons looked to be in high spirits following the news that Chelsea is expecting a second child

Chelsea, who grinned as she pushed along one-year-old Charlotte in a buggy, hid any signs of a baby bump with a long, gray coat and orange scarf

At one stage, Hillary could be seen in charge of the stroller - although Bill kept a guiding hand on the handle

Her jacket was outdone by her mother, who sported a Kashmiri coat she bought in Afghanistan in 2003

Parents: Marc Mezvinsky and Chelsea took turns in charge of the stroller on the festive wander around Midtown Manhattan

Chelsea, 35, and her investment banker husband of five years Marc Mezvinsky took turns in charge of the stroller on the festive wander around Midtown Manhattan, where they visited a book store and also stopped for an ice cream.

Her mother, the former Secretary of State, looked to be enjoying a rare day off from campaigning for the Democratic presidential nomination. At one stage she even pushed the stroller herself - although Bill kept a guiding hand on the handle.

It is thought this is the first time she has been seen in public directly interacting with Charlotte.

And Hillary was obviously not hoping to avoid the limelight in her vibrant coat, which she was worn on numerous occasions since buying it in Afghanistan 12 years ago - including on a visit to Kabul in 2009.

The jacket sparked debate at the time - making it on to the front page of the New York Times - and even made it into one of Hillary's emails which was later revealed to the public following the scandal over her use of a personal account.

'Thx! I bought the coat in Kabul in 03 and thought it should get a chance to go home for a visit,' she wrote to an aide who complimented the outfit after Hillary wore it on a visit to the city in 2009.

Mr Mezvinsky and former president Bill Clinton also looked happy to be on a stroll on what looked to be a pleasant day in New York.

Hillary was obviously not hoping to avoid the limelight in her vibrant coat, which she was worn on numerous occasions since buying it in Afghanistan 12 years ago

Mr Mezvinsky also looked happy to be on a stroll on what looked to be a pleasant day in New York

The jacket sparked debate years ago - making it on to the front page of the New York Times - and even made it into one of Hillary's emails caught up in her private account scandal

Bill and Hillary were seen chatting as they walked through a leafy area of Manhattan earlier on Sunday

Out and about: Bill and the Clinton family visited a book store and also stopped for ice cream during their stroll

Chelsea was also spotted out and about in Manhattan on Tuesday, when she appeared to be trying to conceal any signs of a bump under a baggy shirt.

She couldn't hide her joy as she told photographers she and her family were 'all so excited' about her pregnancy news.

Chelsea revealed that she was expecting another baby with an adorable picture of her daughter Charlotte, which she posted on Twitter.

Alongside a sweet snap of the tot reading a book called 'Big Sisters are the Best', Chelsea wrote: 'Next summer, Charlotte is going to be a big sister! Feeling very blessed & grateful this holiday season.'

As her mother's presidential campaign continues, Chelsea seems increasingly comfortable with sharing aspects of her private life with the world, specifically her images of her daughter Charlotte, no doubt eager to help boost her mother's carefully-crafted image as a caring grandmother.

Big sister: Chelsea Clinton shared this image of herself and daughter Charlotte on Twitter, just one day after posting a picture of the infant alongside her pregnancy announcement

All smiles! The 35-year-old couldn't keep the grin off her face as she stepped out in Manhattan on Tuesday morning, showing off what looked to be the first signs of a baby bump under her shirt

Special snap:She posted this image of Charlotte along with her happy news. Chelsea has previously been very careful not to share images of her child on social media, posting just one of her whole family after the birth

Alongside the picture, Chelsea thanked her friends and followers for their 'warm wishes', adding that she and husband Marc are overjoyed at the prospect of expanding their family.

'Thank you for all the warm wishes!' she wrote. 'Marc, Charlotte & I are so excited about our growing family.'

Chelsea's new arrival will be the second grandchild for her parents, and it was easy to see how thrilled they both were at the prospect of adding to their family.

'Your dad and I could not be happier for you, Marc, and Charlotte,' Hillary, 68, wrote, while retweeting her daughter's original post. 'We’re so excited to meet our second grandchild!'

Bill, 69, added: 'Christmas comes early! @HillaryClinton and I are thrilled for Chelsea, Marc and Charlotte’s growing family in 2016!'