Hi! My baby’s birth weight and height matches the minimum criteria however he looks too small and very uncomfortable in it esp he’s very fragile and “jelly”. My husband and i then tried again when he’s 2 months old then its alot better. Trick is, since baby is still small, buckle the lower supper below your boob/rib area, instead of around waist or hip. Baby will be more “lifted”. And yes both legs hanging out