1+1=3

This is Oisín's 26th day in the Big World. I'm astonished at how quickly the time has passed. He'll be a month old next Wednesday, which is simply unfathomable.

[ETA: His name - for the benefit of those people who are unaccountably unfamiliar with Irish orthography :-) - is pronounced "USH-een".]

Here's how I remember it:

( TMI, gory details, etc. - do not read if squeamish! )