Chrissy Teigen, 35, lost her baby boy in September, and on Saturday she took to social media to mark Jack's due date, posting an image of herself wearing a bracelet with his name on it.
The model captioned the photo on her Instagram Story: "Today was your due date. We love you forever [heart emoji] (sic)"
Teigen also posted a picture of herself while deep in thought on her Instagram.
The model - who has Luna, 4, and Miles, 4, with husband John Legend - wrote on the photo-sharing platform: "Can smile all day but thinking of you on your due date, bug (sic)"
Chrissy previously admitted she was still "coming to terms" with the loss of her baby son.
She explained: "Even thinking back to it now, I am still in therapy about it and I'm still coming to terms with it.
"I have maternity clothes, and there are things that I bought for my eighth month and my ninth month. So it's just hard because he would've been born this week, so you look at those things and you have these constant reminders."