It really depends on your size if you need to then yes wear one. Everyone in puberty goes at there own growth pace so it you need to. Then its perfectly normal to wear a size 12A bra.
There is no particular "regular" size. It depends on whether or not you have reached puberty, and even then, there is no specifically "correct" size. Many 11 year olds are not even in need of this type of undergarment yet.
32A
32B
32A or 34A would be average bra size for a 12 year old girl.
34B
There is no average since each girl/woman is different and breast size is based on DNA.
34 b is the average bra size in the us 36 is the best looking size
Bra sizes have nothing to do with waist size. A slim girl can have a large bra size or a small one. It just depends on her DNA.
There is no "normal" bra size. It varies from girl to girl.
34 b is the average bra size in the us 36 is the best looking size
Average height-5 foot 4-5Average dress size 6-10 Average bra size- It really varies at this age anything from AA to D Average weight-Does depend on your height, look up your bmi!!
There really isn't an "average" size bra for a ceratin age group. Most girls, however, are about a A- to a B-Cup by the time they are 13 years old. Still, it is normal for a girl to be smaller or bigger than that.
ummm..... a 32A? or justice flat 32