Chrissy Teigen has announced that she has suffered a pregnancy loss.
However, on Thursday Teigen shared the news she suffered the loss of their third child, writing in a statement on social media: "We are shocked and in the kind of deep pain you only hear about, the kind of pain we've never felt before.
"We were never able to stop the bleeding and give our baby the fluids he needed, despite bags and bags of blood transfusions. It just wasn't enough."
Teigen shared the news alongside a black-and-white picture showing her crying while sitting up in a hospital bed.
In another photo the author was seen cradling the baby in a blanket while Legend leaned in.
Teigen, who has two other children with Legend, revealed the couple have called the baby Jack.
“We never decide on our babies' names until the last possible moment after they're born, just before we leave the hospital. But we, for some reason, had started to call this little guy in my belly Jack,” she wrote in the caption.
"So he will always be Jack to us. Jack worked so hard to be a part of our little family, and he will be, forever.
"To our Jack - I'm so sorry that the first few moments of your life were met with so many complications, that we couldn't give you the home you needed to survive. We will always love you."
Teigen went on to thank everyone for their "positive energy, thoughts and prayers" and said her family will now spend time grieving.
“We are so grateful for the life we have, for our wonderful babies Luna and Miles, for all the amazing things we've been able to experience. But everyday can't be full of sunshine,” she added.
"On this darkest of days, we will grieve, we will cry our eyes out. But we will hug and love each other harder and get through it."
Legend shared his wife's post on his own Twitter account, writing: "We love you, Jack" alongside five black heart emojis.
Many of the couple's celebrity friends sent messages of support in the comments section of Teigen’s post.
Kim Kardashian West wrote: "We're always here for you and love you guys so much," while Gabrielle Union added: "We love you guys so much and we will be here for whatever yall need. Always."
Hailey Bieber also commented, writing: "I'm so so sorry. Thinking of you and John, praying for you guys and sending you so much love during this time."
Teigen later shared another post on Twitter, writing: “Driving home from the hospital with no baby. How can this be real.”
The news comes after Teigen had updated fans from hospital after being taken in on Sunday.
She shared an update while preparing to have a second blood transfusion, writing on Instagram it "truly truly truly sounds more dramatic than it is".
The couple, who are already parents to four-year-old daughter Luna and two-year-old son Miles, announced they were expecting a third child in August.
They revealed the news in the music video for Legend's single “Wild”.
You can contact the Miscarriage Association helpline on 01924 200799 or email the charity at email@example.com. The helpline is open from 9am to 4pm Monday to Friday.
For more information, help and support regarding pregnancy loss, you can contact Tommy's on 0800 0147 800.