After giving birth to her third child with Kurt Tills, influencer Sarah Day has shared the first photo of her newborn baby.

Saras Day shared her first photo with her newborn son after giving birth to her third child with husband Kurt Tills.

The lifestyle YouTuber, 32, whose real name is Sarah Stevenson, officially confirmed the arrival of her baby to her 1.2 million followers on Instagram on Thursday.

A day earlier, she hinted at her son's arrival while sharing Polaroid photos of her working at home, but didn't officially share the news.

But now she has posted her first photo with her new addition, whose name she has not yet revealed, sharing a photo of her cradling her baby.

Her husband Kurt Guy was also seen in the adorable post with their two eldest children, Fox, five, and Malachi, two.

Confirming the new addition to her growing family, she wrote in a caption: “And just like that… the three long-awaited children were born.”

As she shared the happy news of her baby, she was inundated with congratulatory messages from her friends and celebrity followers.

Indy Clinton wrote: 'Congratulations sir!!!!! Welcome, child.'

Sarah Day (pictured) shared her first photo with her newborn son after giving birth to her third child with husband Kurt Tills.

Confirming her son's arrival, she posted her first photo with her new addition, whose name she has not yet revealed, and shared a photo of herself hugging her baby's hand.

Confirming her son's arrival, she posted her first photo with her new addition, whose name she has not yet revealed, and shared a photo of herself hugging her baby's hand.

M Davies wrote while: 'Congratulations baby!!!!! 'So happy for you!!!'

And Chloe Szepanowski added: 'Congratulations beautiful family, God bless you.'

Rachel Dillian, Steph Claire Smith and Mitchell Orwell were among the famous Australian stars who sent sweet messages.

On Wednesday, Sarah announced that she had welcomed her third child and shared photos of herself working at home on her Stories with the caption, “And so it began.”

In the Polaroid photos, Sarah can be seen touching her belly while sitting on an exercise ball and drinking a hot drink.

Another image showed her giving birth at home, leaning on her bed while a midwife held her.

A final black and white photograph shows her two oldest children, Fox and Malachi, smiling as she documents the arrival of her third child.

The Sydney-based social media star previously confirmed she is expecting a baby, but has yet to confirm the name of her third child.

A day earlier, she hinted at her son's arrival while sharing Polaroid photos of her working at home, but didn't officially share the news.

A day earlier, she hinted at her son's arrival while sharing Polaroid photos of her working at home, but didn't officially share the news.

Just weeks before giving birth, Sarah teased the name of her third child, revealing that she and Kurt had already chosen the name.

In August, Sarah dropped hints about her son's name because Kurt had two letters in the name 'in love', which he didn't know.

'Kurt and I have to agree on his middle name now. “Kurt already had a crush on someone, but I don't think it's two syllables and it flows like a one-syllable name,” she said at the time.

“Honestly, I feel like I suggested 200 to Kurt right now and he stuck with this particular two-letter name.”

She urged fans to share their favorite one-letter names in the comments as inspiration for the baby's middle name.

Sarah already shares sons Fox, five, and Malachi, two, with Kurt (all pictured) and they have now welcomed their third child into their growing family.

Sarah already shares sons Fox, five, and Malachi, two, with Kurt (all pictured) and they have now welcomed their third child into their growing family.

He added: “So help me convince him.” Unique one-letter names you can recommend for baby middle names!?

Sarah and Kurt also share children, Fox and Malachi, and the influencer has opened up in the past about her hormonal issues and how difficult it was to conceive.

She took to social media in May to share the exciting news of her third pregnancy with her followers.

“We can't wait to meet you, beautiful baby,” she wrote in a sweet Instagram post.

In the nine-minute YouTube clip, Sarah also gave fans an insight into the moment she found out she was pregnant.

The footage showed her going through several negative pregnancy tests until she got a positive reading on the digital device.

She took to social media in May to share the news of her third pregnancy and confirmed she was expecting a boy in a gender reveal video in June (pictured).

She took to social media in May to share the news of her third pregnancy and confirmed she was expecting a boy in a gender reveal video in June (pictured).

“My heart is beating very fast,” he said after the good news. “We always prayed and dreamed of having three children.”

In June, she announced she would be welcoming another baby while sharing an adorable gender reveal video.

Sarah married Kurt in May 2021, and their eldest son, Fox, sweetly walked down the aisle as a page boy.

Vlogger has earned a loyal following online for his practical fitness, health, and wellness tips and tricks.