Roughly how long do infants stay in size 1 Pampers?

My son was in size 1 for like 3 months

Way longer then the new born lol my girl is 18 days old and her milk belly is taking over... lol

I can’t remember exactly. It was a while. I don’t really recommend stocking up on diapers though. I remember that we moved to size 2, not because size 1 didn’t fit- there was still a lot of room and she was in the middle of the weight category, but because she was having blow outs and I read that sometimes you just have to move up a size and it did the trick! If you want to get diapers ahead, I wouldn’t do more than one box of newborn and 3 giant boxes of size 1. Beyond that you never know!

My son didn’t stay in them very long he is about to be in a size 3 at almost 3 months old, he’ll be 3 months next week

Mine is 2 months in a size 2. It depends on the baby. I'd stock up on sizes 2,3,4,5 more than newborns or ones

Its by weight i believe.

I'm trying to finish off the size 1s from my diaper cake, I kinda forgot they were size ones, but have a box of size 2 ready to go. My little one will 3 month on July 4th. But we will see if she can finish them out, they are definitely getting close to being to small, they aren't name brand either and seem to fill up or over flow easy.

We started with Pampers but I actually switched to huggies little snugglers, they have a nifty band in the back that helps keep those explosive poopy diapers from blowing out the back lol.

Generally though the weight listed for each size ends up holding true in my experience so far.

3mths for my son buh it depends on the weight of the baby

My 9lb almost 2 mo old is still in size ones. But they’re getting snug so in a couple weeks, by 2.5mo we will move up to size 2’s.

@heidi3581 thanks

@amysbabies thanks

Until they’re 3-6 months or until they’re like 14 pounds