Belly button piercing?

Alantra🧜‍♀️ • Wife ❤ 1 son 💙 One on the way with a twin in heaven 💕

How long do I wait to change my ring? I know I haven't had it long enough to change yet but I wanna know when would be the best time? It's only been a month.. how will I know it's healed enough to change?