Gigi Hadid and Zayn Malik welcome their first child, a baby girl

'She’s already changed our world', the supermodel wrote on Instagram

'Our girl joined us earth-side this weekend and she’s already changed our world. So in love,' Gigi Hadid captioned this photo, announcing the birth of her baby girl. Instagram / Gigi Hadid

Former One Direction singer Zayn Malik shared this photo of his hand with his baby girl's to announce her birth. Instagram / Zayn Malik

Gigi Hadid shared this picture from a photoshoot at 33 weeks on Instagram. Instagram / Gigi Hadid

On August 26 she said she was 'Growin an angel'. Instagram / Gigi Hadid

An image Gigi Hadid shared from a July maternity photoshoot. Instagram / Gigi Hadid

Towards the end of her pregnancy, Gigi Hadid shared this throwback 'from about 27 weeks'. Instagram / Gigi Hadid

Of her pregnancy, Gigi Hadid said 'time flew'. Instagram / Gigi Hadid

One of the first images Gigi Hadid shared on social media after announcing her pregnancy, at home on the family's Pennsylvania farm with sister, Bella Hadid. Instagram / Gigi Hadid

Supermodel Gigi Hadid has welcomed her first child with pop star boyfriend Zayn Malik.

The couple welcomed a daughter at the weekend, and shared the happy news on Instagram on Thursday morning.

In a black and white photograph, Malik's tattooed hand can be seen cradling the newborn's, who is wrapped in a fluffy blanket.

"Our girl joined us earth-side this weekend and she’s already changed our world. So in love," she wrote on Instagram.

Posting a similar black and white shot, Malik wrote: "Our baby girl is here, healthy and beautiful. To try put into words how I am feeling right now would be an impossible task. The love I feel for this tiny human is beyond my understanding. Grateful to know her, proud to call her mine, and thankful for the life we will have together x."

Dozens of the couple's celebrity friends were quick to send the new parents their well-wishes. "Welcome babygirl! So happy for you guys," model Hailey Bieber wrote.

Olivia Culpo wrote: "Ahhhh!!!!! HUGE congrats!!!!! I can’t wait to meet this angel."

And Emily Ratajkowski commented: "Congratulations Gigi and Zayn!!"

News of Gigi's pregnancy was first revealed in April, and the model later confirmed the news to US chat show host Jimmy Fallon, saying the couple were "extremely happy and excited".

“Obviously we wished we could have announced it on our own terms, but we’re very excited and happy and grateful for everyone’s well wishes,” she said at the time.

Hadid added that being in quarantine with her family had allowed her to feel every moment of her pregnancy. “It’s a nice silver lining to be able to be home and together and really experience it day by day,” she told Fallon.

Gigi Hadid has shared photos from a July 2020 maternity shoot. Instagram / Gigi Hadid

Gigi kept much of her pregnancy private, spending lockdown alongside Malik, her mother Yolanda, and her supermodel sister Bella at the family's sprawling farm in Pennsylvania. However, she gave fans a few snippets along the way, sharing striking images from a pregnancy shoot on July 26, when she revealed she was 33 weeks along.

Her family members also shared their excitement about the family's new addition throughout the pregnancy, with supermodel sister Bella Hadid saying she "couldn't stop crying."

The most recent picture of the couple together: Gigi Hadid with Zayn Malik and sister Bella Hadid, celebrating Gigi's 25th birthday on April 23, 2020. Instagram / Gigi Hadid

Zayn Malik and Gigi Hadid seen on January 12, 2018 in New York City. Getty Images

Gigi Hadid and Zayn Malik celebrating his 25th birthday in January 2018. Instagram / Gigi Hadid

Zayn Malik spending Christmas with Gigi Hadid's family, in a post shared by the model's mother Yolanda Hadid in December 2017. Instagram / Yolanda Hadid

The couple graced the cover of Vogue's August 2017 issue. Instagram / Gigi Hadid

Zayn Malik and Gigi Hadid attend the Givenchy show as part of the Paris Fashion Week Womenswear Spring / Summer 2017 on October 2, 2016 in Paris, France. Getty Images

Gigi Hadid and Zayn Malik attend the Versus Versace show during London Fashion Week Spring / Summer 2017 on September 17, 2016 in London, United Kingdom. Getty Images

Gigi Hadid and Zayn Malik arrive for the "Manus x Machina: Fashion In An Age Of Technology" Costume Institute Gala at Metropolitan Museum of Art on May 2, 2016 in New York City. WireImage

Zayn Malik and Gigi Hadid leaving their East Village apartment on March 25, 2016 in New York City. Getty Images

Zayn Malik, Gigi Hadid and Taylor Swift leave Gigi Hadid's apartment on September 12, 2016 in New York City. Getty Images

Gigi’s father, Palestinian-Jordanian real estate developer Mohamed Hadid, shared a touching handwritten letter to his grandchild ahead of her birth.

“Hello little grandchild, it is me, my heart as happy as can be. I wish for you the sun and moon, I wish for you a happy time,” the poem read.

“Know that grandpa’s always here, I’ll do anything, anything for you, my dear.

“When I heard you were on the way, I smiled and wiped a tear away. I cried the tear because I knew my heart would always belong to you.”

Hadid, 25, and Malik, 27, have been in an on/off relationship since 2015. They broke up for a period in 2018, but it was confirmed they were back together in December 2019.

The most recent picture of the couple together: Gigi Hadid with Zayn Malik and sister Bella Hadid, celebrating Gigi's 25th birthday on April 23, 2020. Instagram / Gigi Hadid

Zayn Malik and Gigi Hadid seen on January 12, 2018 in New York City. Getty Images

Gigi Hadid and Zayn Malik celebrating his 25th birthday in January 2018. Instagram / Gigi Hadid

Zayn Malik spending Christmas with Gigi Hadid's family, in a post shared by the model's mother Yolanda Hadid in December 2017. Instagram / Yolanda Hadid

The couple graced the cover of Vogue's August 2017 issue. Instagram / Gigi Hadid

Zayn Malik and Gigi Hadid attend the Givenchy show as part of the Paris Fashion Week Womenswear Spring / Summer 2017 on October 2, 2016 in Paris, France. Getty Images

Gigi Hadid and Zayn Malik attend the Versus Versace show during London Fashion Week Spring / Summer 2017 on September 17, 2016 in London, United Kingdom. Getty Images

Gigi Hadid and Zayn Malik arrive for the "Manus x Machina: Fashion In An Age Of Technology" Costume Institute Gala at Metropolitan Museum of Art on May 2, 2016 in New York City. WireImage

Zayn Malik and Gigi Hadid leaving their East Village apartment on March 25, 2016 in New York City. Getty Images

Zayn Malik, Gigi Hadid and Taylor Swift leave Gigi Hadid's apartment on September 12, 2016 in New York City. Getty Images