Too early to buy???

Hi everyone so I’m only 6 weeks and 1 day and cannot stop looking at stuff online and in shops, haven’t bought anything yet but so tempted. Is it stupid of me to buy so soon? When is too soon? I think I was probably around a couple months when I bought the first item with my DS. I’m driving myself insane telling myself it’s far too early but then I want to be sensible and give myself plenty of time to get what we need too. Would like to hear your opinions xx