Newborn clothes

This is my first pregnancy, still abit lost as to how many pieces of clothes newborns need. ive googled that they dont need much as theyll grow fast, however im still not sure as to roughly how many pieces i need to buy (assuming i wont have any hand-me-down clothes) - short sleeve onesie - long sleeve onesie - zipper sleepsuit - muslim cloth/swaddle Is it advisable to get top and pants or just stick to onesies for newborn? And do mummies also buy 3-6M clothes at the same time or at a later stage? #advicepls #firstbaby