8-14 ibs is size 1

I put my daughter in size one around 3 weeks, but just because we ran out of newborn, and I didn't have any money to get more. Around 4 or 5 weeks, though, they actually started fitting, and I didn't have to flip the top down

my son is 2 months and is in size 1 diapers I put him in them when he turned 8lbs

The newborn just seemed to be getting a little snug.

We just switched out daughter to size one. She is 8 pounds. We use pampers.

my girl is almost two months and in ones. she would still be in new borns, but her thighs are big. so now she's in ones

newborn diapers go up to 10 lbs but I didn't wanna buy a big box n not use em all so once he finished his new born I switched him to 1 at 8 10 oz he was 3 weeks

mine began at 2 1\2 weeks

Gabe just got 8 lbs. Idk if I should switch him just yet

my baby was about 8 pounds i believe she was around a month or a month and a half old when she started wearing them.