I'm 13 and got my belly on pierced i need some advice plz from PARENTS.?

You say you got it done professionally-- but there are no reputable piercers that would pierce a 13 year old without parent consent. You're parents are going to find out- I guarantee you. They are gonna be a lot more upset if they find out on their own as opposed to you telling them what you did. If you want to keep it- you need to tell them. If you don't want to get into any trouble.. you should just take it out. There will be a tiny scar but barely noticable unless you're up close.