The babygrows are too cute.
Jessie J has joked that her son "came out long" as she's already clearing out his clothes.
Her son is less than two weeks old, but Jessie posted pictures of his babygrows saying he no longer fit into some of them.
The Price Tag singer announced last Friday that she had given birth a week earlier, calling the new feeling of motherhood "indescribable."
"A week ago my whole life changed. My son entered this world and my heart grew twice the size," she wrote on Instagram.
"I am flying in love. He is magic. He is all my dreams come true. He is my whole world. He and I are both doing great."
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Jessie thanked her followers for their "continued love and support."
The announcement of her pregnancy was joyous news for Jessie and her fans, as the singer suffered a miscarriage in 2021.
But it seems Jessie's grateful for every moment with her newborn as she wrote on Instagram, "I am soaking up every second and still can't believe he is real, here and mine."