The first picture of grandmother Ivana holding her grandson, believed to have been taken hours after his birth, emerged on Monday night

Less than 48 hours later, Ivanka left the hospital, but not before sharing a picture of husband Jared and daughter Arabella with Theodore

Ivanka gave birth to her third child, Theodore James, on Sunday

The 34-year-old was pictured picking up her eldest children Arabella, four, and Joseph, two, from their New York City school on Wednesday

Ivanka Trump is back to her regular routine just three days after giving birth to her son Theodore James.

The 34-year-old was all smiles as she picked up her eldest children, Arabella, four, and Joseph, two, from school on Wednesday afternoon, presumably leaving her newborn son at home.

Despite just giving birth to her son at 5:43pm on Sunday, she was the picture of elegance during the school run.

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Motherly duties: Ivanka Trump was back to her picking her eldest children Arabella and Joseph up from school less than three days after giving birth to her third child Theodore James

Helping hand: The 34-year-old held two-year-old Joseph in her arms while she guided four-year-old Arabella towards the car

Balancing act: The mother-of-three expertly balanced her son while holding on to his orange backpack

The happy mother-of-three donned a blue belted coat, skinny jeans, and classic black flats - from her own fashion label - for the outing, leaving her blonde hair pulled back in a loose ponytail.

Ivanka couldn't hide her motherly glow as she left her New York City apartment building and headed to her children's school.

The businesswoman was pictured holding Joseph as she guided Arabella through the city streets with her hand.

Both children were holding colorful pinwheels, which they most likely got at school, while Arabella was holding some of her art work.

While Arabella donned black and white striped leggings, a black puffy coat, and Mary Jane-style sneakers, Joseph looked relaxed in a hooded winter jacket, jeans, and velcro shoes.

All smiles: Ivanka was the picture of elegance in a belted wool coat, skinny jeans, and black flats as she left her Park Avenue apartment on Wednesday

Stylish kids: Arabella donned black and white striped leggings, a black puffy coat, and Mary Jane-style sneakers, while Joseph looked relaxed in a hooded winter jacket, jeans, and velcro shoes

Throughout her most recent pregnancy, Ivanka was always on the go, so it is unsurprising that she happily returned to her motherly duties as soon as possible.

Ivanka, who left the hospital on Tuesday, beamed with joy as she was pictured heading into her Park Avenue apartment with her 35-year-old husband Jared Kushner as he carried their precious baby in a car seat.

Wearing a loose floral-print red dress, the mother-of-three positively glowed as she showed off just a tiny hint of a bump in the flattering spring-inspired ensemble, which featured a high neckline and high hemline which showed off her long legs.

Despite giving birth less than 48 hours earlier, Ivanka looked fresh-faced, wearing only a touch of make-up, while her blonde hair was left loose around her shoulders.

Never one to miss an opportunity to proudly show off her own clothing designs, Ivanka finished off the ensemble with a pair of lace-up black ballet flats from her eponymous fashion label.

New toys: Both children happily held on to pinwheels, which they presumably got at school

Budding artist: Arabella held on to her art work, which featured pictures of a carousal, a tree, and a rainbow

Pausing to flash a smile at the cameras, Ivanka followed her husband into the Trump-owned building after exiting the car that had driven the trio from the hospital back to their home.

Ivanka's departure from her New York hospital comes just a few hours after she shared the first image of her baby son with his dad Jared and sister Arabella, and 12 hours after the first picture of her mother Ivana holding her newborn grandson emerged on social media.

In the picture, proud grandmother Ivana, 67, is seen beaming with delight at the camera in her picture, as she cradles the tiny infant, who is believed to have been just a few hours old when the image was taken in 34-year-old Ivanka's hospital room.

Modeling her signature blonde beehive, the former wife of Donald Trump looks typically glamorous in the snap, which also sees her wearing a dark smokey eye, and pink lipstick.

Smiling boy: Joseph looked thrilled to be back in his mother's arms again after her brief hospital stay

Hard worker: Arabella clung tightly onto her worksheets as she made her way inside with her mom

Beaming with joy: Ivanka also couldn't hide her smile when she returned home from the hospital with her newborn son and husband Jared Kushner on Tuesday

The picture was originally posted on Instagram by family acquaintance and magazine publisher Jason Binn, who also shared an image of Ivanka with her newborn baby son.

Hours after he posted the images, seemingly without the new mother's permission, with his 380,000 Instagram followers as well as his 122,00 followers on Facebook, he took them down.

It is unclear how Binn got the images to begin with.

Shortly before lunch on Tuesday Ivanka shared a sweet family photo, this time of her husband Jared and Arabella posing with the newest member of their family, who is seen swaddled in a blue, pink and white hospital blanket.

Taken during the family's visit to the hospital on Monday morning, the image sees Jared sitting on a chair in his wife's hospital room, holding baby Theodore in his arms, while Arabella perches behind him, clinging on to his neck in an embrace.

Spring thing: Ivanka donned a bold floral-print dress for the occasion, hiding the remaining hint of a bump in the flattering design, while showing off her long legs

Doting dad: Jared, 35, carefully carried his newborn son into the apartment in a car seat

Both father and daughter are showing off wide smiles to the camera, while Theodore rests peacefully in Jared's arms.

The image was shared just a few hours after Jared was pictured taking Arabella and Joseph to visit their mom and newborn brother in the hospital.

Jared held Joseph in his arms while the family's nanny walked with Arabella on their way to the hospital.

During their walk outside, Arabella was heard saying she and her nanny got flowers for her mother, who gave birth to her third child on Easter.

Jared, who was casually dressed in a crewneck sweater and New Balance sneakers, couldn't help but smile as he headed into to see his wife, with his hospital ID band still on his wrist.

Meanwhile, Joseph snacked on an apple as he relaxed in his father's arms and Arabella held on to her nanny's hand as she happily hopped out of the car and walked towards the hospital.

Follow the leader: Jared led the way while holding Theodore in a carrier, while Ivanka followed behind

Proud moment: Ivana Trump was pictured holding her newborn baby grandson Theodore for the first time in a heartwarming image taken inside her daughter Ivanka's hospital room and shared on Monday night

'This is love': On Tuesday morning, Ivanka shared this image of her husband Jared Kushner, and their daughter Arabella, with baby Theodore, which was taken during their visit to the hospital on Monday

The proud father-of-three was carrying a backpack and two other bags, presumably gifts and necessities for Ivanka, in addition to his eldest son.

News of the birth came just hours after Ivanka and her husband were photographed smiling on their way to Easter breakfast in New York City.

'Jared and I feel incredibly blessed to announce the arrival of Theodore James Kushner,' Ivanka, 34, wrote along with an Instagram photo announcing her son's birth on Sunday evening.

'Jared, Arabella, Joseph and I are so excited to welcome this sweet little boy in to our family!' continued the post.

Both Theodore and James are names held by former American Presidents such as Theodore Roosevelt and James Madison to name a few, though it's not known if Ivanka and Jared purposefully named their newest son after historical figures.

Ivanka's brother Donald Trump Jr tweeted his congratulations to his sibling saying: 'Congrats to my amazing sister @IvankaTrump & Jared on the birth of their third child Theodore. Can't wait to meet!'

Easter baby: Ivanka shared this image of herself with her newborn son Theodore just hours after she gave birth on Sunday evening

Proud father: Ivanka's husband Jared was seen carrying Joseph on his way to the hospital where his wife and newborn son Theodore were staying

Big sister: The family's nanny can be seen helping their daughter get out of the car as she happily gets ready to see her mom and her new brother

Donald Jr also shared a pictured of his father enjoying Easter lunch on Sunday afternoon with two of his grandchildren. He captioned it: 'Easter lunch with @realdonaldtrump. Had a great week with the family for their spring break.

'Now, after being with my 5 kids for a week I need a vacation!!! Every year after these breaks I realize how hard Vanessa works to keep these munchkins of ours in line. Her job is so much harder than mine... and more important! Amazing respect.'

Despite sporting a baby bump for more than nine months, Ivanka followed her Republican father on the campaign trail as much as she was physically able.

Ivanka is an executive vice president at the Trump Organization and also has been helping him throughout his campaign.

She accompanied him to South Carolina on February 20 where he said during a campaign stop: 'Ivanka, we have a hospital ready just in case, and South Carolina, we’re going to have a baby and there’s nothing wrong with that. It could be any second. It could even be before I’m finished [giving this speech].'

Three's company: Theodore is Ivanka and Jared's third child together. The happy couple are pictured on Sunday morning on their way to Easter breakfast

Joyous news: 'Jared and I feel incredibly blessed to announce the arrival of Theodore James Kushner,' Ivanka captioned this Instagram photo announcing her son's arrival

Knowing that she might soon give birth, Ivanka did not follow her father to Florida for Super Tuesday. Instead, she stayed in New York to prepare for the arrival of her son on a celebratory Sunday.

Even when she could not make it out to campaign, like during the recent primary in Arizona, Ivanka still recorded a video encouraging residents to get out and vote which she posted on Facebook.

Donald ultimately ended up winning that state's primary.

Since publicly announcing her pregnancy in September, Ivanka has posted updates on her Instagram in the days leading up to Theodore's birth.

Happy as can be: Donald Trump Jr shared his joy over becoming an uncle again and took to Twitter to congratulate his sister

Not your average grandfather: Donald Trump Jr shared this pictured of his father enjoying Easter lunch on Sunday afternoon

Former family of four: Ivanka and Jared are seen with their two children out in New York City last week

Proud father: Republican presidential candidate Donald Trump pat Ivanka's growing baby bump while celebrating his victory in the South Carolina primary in Spartanburg, South Carolina on February 20

'I cannot wait!' Ivanka wrote in an Instagram post six weeks ago in which she cradles her huge baby bump.

Ivanka, her husband, and children are Jewish and celebrated Purim last week.

Her father said last Monday while speaking at AIPAC; 'My daughter Ivanka is about to have a beautiful Jewish baby.'

'In fact, it could be happening right now, which would be very nice as far as I’m concerned.

Ivanka is not the only candidate's daughter who, up until Sunday, was growing the future of America in her belly.

Hillary Clinton's daughter Chelsea is pregnant as well and is due to give birth in the summer of 2016.