Shopping help!!!!

LJ • 1 baby girl with another baby on the way
Hey everyone,
​I had a scan yesterday at 14 and a half weeks and I want to start buying nappies! I will be using disposable ones but I'm needing help knowing how many I'll need of each size kind of thing?? This is my first baby.
​Today i bought pampers as they were on offer and got 112 size two nappies suitable for a baby sized 6-12lbs I think. 
​Any advice people? 
​Also some help on advising me essential items to start buying? I want to be well prepared and spread my costs well :)