(+23...6) asks I am 12 and my breasts 👙are still flat.
Puberty usually starts around 8 to 13 years of age for girls. If your breasts are still completely flat one year from now📅, you may have delayed puberty. Ask your mother if her breasts started growing late as well (delayed puberty is often inherited). You probably have nothing to worry about and your body will catch up with the other girls in time🤗!