When is a newborn no longer a "newborn"?

I'm curious what you think! Who decides when a newborn is no longer a newborn? How long are you an infant? A baby? I guess when people stop calling Ian a newborn, I'll know!

His umbilical cord fell off today! (This is what started that whole line of questioning if you were wondering).

So, this means that a bath is forthcoming! We have to wait 24 hours after the cord stump has fallen off before the area can be immersed in water. Research says this is so the area can scab over to further ward off infection. Expect pictures soon! :)