I'll admit that I've never really counted wet or dirty nappies with either of my babies. Breastfed babies can go over a week without pooping so I don't stress about that one (although I do worry about the poo explosion that I know is coming, hehe).

You'd notice if the nappies weren't wet when you changed your son just from the fact that the nappies would still be really light and flat, not a little heavier and sort of rounded from the wetness.

Ten feeds a day sounds pretty normal. I think both my babies have fed 12-15 times a day when really young, but that includes evening cluster feeding. My son actually kept up 10-12 feeds a day until I fell pregnant with my daughter and my milk supply dropped.

Is your son gaining a good amount of weight?