Yeah you can fold them down

yes my son using them now

yes. the newborns arent much smaller and the biggest difference is the dip for the cord, which you can just fold the size 1s down a bit and not have an issue.

yes

if baby is gonna weight 8 lbs or or a little less yes u can..

Some babies are bigger than others and go straight to a size 1, I'll get them now just to be safe 😊