I have a lump in my belly just to the right of my belly button what could it be?

It depends: The lump may be in the skin of the belly or it may be arising from inside the belly and be felt from outside. It can be one of many different possibilities. You need to go see a doctor to determine where it is located...Outside or inside the belly which then determines what to do next. It is not a good idea to ignore any lumps especially if they are painless...As they can be a serious medical prob.