no it does not.. but i can say that my daughter weighed 7lb 14 oz when she was born and she fit in this for over a month. i know that at one wk old she had gained one lb. so she was def over 9 lbs when she didn't fit it. It was one of the first ones i put her in and then used all the others, didnt want to not use one.. think i might have put it on her again when she was about two months old