Following and always remember you can take them and exchange them at the store

We start with two small bags of newborn diapers and then two big boxes of size 1, 2, and 3. You can always get more and a lot of times you can exchange them for a different size if the package isn’t opened yet. Both of my kids were in newborn for about 3 weeks. Then size 1 until 3-4 months. My daughter is currently in size 2.

It really depends on how much your baby goes through or how fast they grow.. but for me number 1 didn't last long as much as number 2 diapers did. She got thru that phase quick.. I think it would be safe to start off with a box of newborns or 1s.. that way you cant be sorry.