The couple are also parents to Arabella and Joseph, two

Ivanka and her husband Jared Kushner, 35 welcomed Theodore James into the world on March 27

Some of Ivanka's 941,000 Instagram followers pointed out that the little boy looks just like his four-year-old sister Arabella

The 34-year-old took to Instagram on Tuesday morning to post a snapshot of Theodore sitting in a plush chair with his name on it

Ivanka Trump's newborn son Theodore may only be two months old, but the little boy has already reached a major milestone — sleeping through the night.

The 34-year-old mother-of-three took to Instagram on Tuesday morning to share a precious picture of baby Theo posed underneath a card that reveals he 'slept through the night for the first time'.

'Last night was major for Theodore and me. #BigStuff #Milestones,' Ivanka captioned the image, which sees the infant sitting in the corner of a plush chair with his name on it.

Major milestone: Ivanka Trump took to Instagram on Tuesday morning to share a photo of her son Theodore James after he slept through the night for the first time

Look of love: The 34-year-old posed for this precious photo last Tuesday before she headed to her office

In the picture, Theodore is posed in his nursery wearing a light blue and white striped onsie, while the card revealing his milestone is balanced on the top of the chair he is sitting in.

Theo, who was born on March 27, is getting bigger by the day, and some of Ivanka's 941,000 Instagram followers took to the comments section of the post to point out that the beautiful little boy is the spitting image of his four-year-old sister Arabella.

Ivanka often shares pictures of her three children on social media, and her latest post celebrating her youngest son's accomplishments is no exception.

The proud mom, who returned to work two weeks after Theo's birth, is undoubtedly thrilled that her newborn is already settling into a sleep schedule.

In addition to her role as executive vice president at the Trump Organization, Ivanka also runs her own eponymous clothing and accessories line and lifestyle website dedicated to women who work.

Happy boy: Ivanka captioned this photo of Theodore 'someone is excited for the weekend' when she shared it Friday

Proud mom: Ivanka took to Instagram to share a photo of her 'dinner date' with her three children, Joseph (left), Theodore (center) and Arabella (right) last Thursday

And last week, the busy mom announced that her new book, Women Who Work: Rewriting the Rules of Success, will be published next spring.

'Today's generation of working women is the first to be able to unabashedly embrace the fact that our lives are multidimensional,' Ivanka said in a statement.

'We're deeply invested in our careers, but they don't solely define us. For us, it's about working smarter, not harder; integrating our personal passions and priorities with our professional goals in order to architect lives we love.'

Ivanka undoubtedly knows a thing or two about weaving her personal life into her life as an executive, and on Friday afternoon she happily shared a snapshot of a smiling Theo propped in his chair wearing a white short-sleeve button-down and pale blue shorts.

Doting daughter: Ivanka and her husband Jared Kushner (far left) joined her father Donald (center) and her stepmother Melania (right) during his speech at Trump National Golf Club Westchester last Tuesday

Catching some Zs: The proud mom shared this sweet photo of her sleeping son Theodore earlier this month

'Someone is excited for the weekend!' she captioned the image.

The night before, Ivanka snapped a photo her children, Arabella, two-year-old Joseph, and Theodore, surrounding the dining room table.

In the snapshot, baby Theodore is lying in a bouncy chair that has been propped in the middle of the dining room table as his brother and sister stand on their chairs in front of their meals.

Joseph is all smiles as he proudly dons his Cookie Monster pajamas while Arabella takes a page from her model mom and poses with her hands on her hips as she looks over one shoulder.

Happy days: Ivanka enjoyed some one-on-one time with Arabella with a picnic in Central Park a few weeks ago

Great dad: Jared gave their Arabella and Joseph a playful piggyback ride as he smiled for the camera last month

'Table for four. #DinnerDates.' Ivanka captioned the image, which was taken in their Park Avenue home.

And while Ivanka's life is far from average, she and her children were enjoying a simple dinner of what looked like chicken milanese and sliced avocados, which she could have easily prepared herself.

Ivanka, who is married to 35-year-old Jared Kushner, explained in her recent essay for Business Insider that as a millennial she is in the first generation of women that are celebrating the fact that their lives are 'multidimensional'.

'We're not constantly navigating between a "work life" and a "home life," rather, we're embracing the fact that we have one life, and it's up to us to live it to the fullest, based on our individual passions and priorities,' she added.