Newborn Size Vs. 3 months Size

Zeba • Tue, Oct 13 • | m a r r i e d 💍❤️ 01/29/2013 | n e w y o r k 🗽 | 💙💙 baby z born on 03/07/2016

What sizes did you all get for the baby? I have no idea how many newborn sizes I should get vs. 3 months. How quick does newborn size get small any idea ladies?