What age do they move from small to medium nappies?
Ok so I know this could be a how longis a piece of string question, but generally at what age do little ones move from small to medium nappies, I guess at this stage I am specifically looking at Itti snap ins. My thoughts are that I will use a fitted and cover- something like a spunkybutt with a Maz cover for now, and just start my AIO stash from medium, as I don't know that they will last long in a small.
Can anyone share their own experience with sizing and ages?