Chrissy Teigen's friends donate 7 pints of blood in honor of late son Jack

Chrissy Teigen has taken to Instagram to share a touching post revealing that her friends donated seven pints of blood as a tribute to her late son Jack.

The number "seven" is significant as it is the same number of pints she was administered in the hospital as staff fought to save the life of her and John Legend's son.

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She wrote in the heartfelt caption: "Ok, I tried writing this 4 times but the tears were too much. Here we go again, with my heart full of warmth and happiness.

"My friend @kimmiekyees sent me this with the caption 'Me and 6 of my friends donated blood to replace the 7 pints you were given in the hospital, in honor of baby Jack. I love you friend'

"Phewwwww the tears. I’m overwhelmed by our circle of friends. The love I feel for each and every person in our circle actually makes me ache. @kimmiekyees, I’ve known you for so many years now."

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The caption continued: "You know every story, you hear every life gripe, you’re amazing at what you do but the way you treat my kids and family is cherished always. To do something like this for baby jack is just... I dunno [sic]. Beautiful.

"@kimmiekyees was told by the volunteers that donations were severely down because high schoolers are responsible for so much of the blood donated.

"Usually, they’d get a coupon for an ice cream cone or a movie ticket, but without school in session, donations are down. I have a lot of friends who normally would donate from a special day at work, but alas, no work.

"Kimmie, I love you. I love this. I am so proud of the people I surround myself and my family with."

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Last month, the 34-year-old supermodel revealed that she and John had lost their third child, a boy named Jack, following weeks of complications and bleeding that led to her being hospitalized.

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"We are shocked and in the kind of deep pain you only hear about, the kind of pain we’ve never felt before," Chrissy revealed on Instagram.

"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."