How do you change a starter belly ring?

I had my belly pierced since the beginning of April. When should I change it if it isn't sore anymore. I have a prettier ring to put in it and how do i change my belly ring?How do you change a starter belly ring?
they say to wait six months to change it...it will still get infected.. you just remove the ball and then slide the ring out...slide new ring in and put ball back onHow do you change a starter belly ring?
calla piercer