safe ph for now

i have no means of testing my medium ph or my water ph due to low cash

as my medium is ph neutral and my water is distillled and also neutral will i be good for at least a month?

in a month i get paid and get a tester pen

i know my ferts can affect the ph but will it be that much to cause damage?

shoul i just wait before planting these seeds?

the small dropper and glass beaker ph tests are like $6 here in america. that could do you until you can get the tester you have your eye on

cheapest here i found is a tester pen 35 quid

that's like 70$