Size 2 and 3 Baby Diapers too much or just enough?

I bought a box of size 2 diapers (252 count) and 2 Boxes of Size 3 (220 count) do you think that is too much or just enough? Im trying to stock up on diapers b4 my son is born. Also, how long do they stay in size 4 Diapers ( on average)?
13 answers 13