I would say have about 6 outfits of each then buy more as you go along because it's not really predictable how fast she will grow :)
I though I wouldn't need alot of newborns but my daughter is now 7 weeks and she is just going out of newborns. 0 to 3 is still huge on her. In my opionion you can never have to many they poop pee and spit up on everthing. I leak all over my daughter also
Is the gonna be born in the summer or during the cold times?
I actually did 14 outfits in each size. One sleeper and one day outfit per day in case she has spit up or accidents. That's an outfit per day plus one that could be in the washer if need be lol
She gonna be a spring baby...im due in april
You can browse through any online shop and you will get a huge collection of clothing for your baby.