Please do not worry about this one bit. People develop at different rates and you are very young. If fact, you are a year too young to be asking questions on this site. You might get a clue on how you will develop by looking at your relatives, but even that is not sure.
When you are 18, you might want to reconsider, but before then, give this no thought at all.
Concentrate on developing your character and personality,and spirit. That ...

Please do not worry about this one bit. People develop at different rates and you are very young. If fact, you are a year too young to be asking questions on this site. You might get a clue on how you will develop by looking at your relatives, but even that is not sure.
When you are 18, you might want to reconsider, but before then, give this no thought at all.
Concentrate on developing your character and personality,and spirit. That is what really counts.

You can't make them bigger - mother nature will do that for you! But, there are some great padded bras available which will make you look bigger until you catch up with the other girls. Remember, these girls with the larger breasts at twelve, will be saggy when they get older! But you will have the perfect ones! Be patient! In a year or so, you'll be the envy of all the other girls!