I got my septum pierced 3/4 days ago. The piercing is rather small and barely noticable, so I'm wondering how long I have to wait to change it. Not the width, just the size.
Ideally you should be waiting anywhere from 1-2months. =]
But I waited a month flat to change mine...
but 3 at the very least
at 3-4 days its still a new wound and is no wear near healed yet
you only need to wait 4 weeks to change a septum ring.