Should I just stop buying them then??? ADVICE PLEASE LADIES :)

Megan
So me and my husband decided after watching a bunch of reviews that we wanted to use pampers diapers and their sensitive baby wipes. My mom used these on all of us too.
We read on Pinterest to buy a box of diapers and wipes every time we grocery shop, so that we won't have to buy diapers for atleast the first 6months!!
So far we have two big boxes of diapers 1 new born, 1 size one and 13 packs of wipes. 
My sister in law said I shouldn't do that in case I don't like the diapers? That I should stop stocking up? As she heard pampers are for girls and huggies are better for boys? 
(We don't know the sex yet!)
So do I take her advice or keep doing what I'm doing I like pampers all my family used them for their babies and I want to be organized? 
Thanks in advance ladies!