For a teenage girl, is my body a bit out of the ordinary, or am i just paranoid?

i'm 5'2", and weigh about 125 lbs. i'm a size 8 in jeans, and a 34C. i'm sure this is probably the below the national average size for a woman, however, i'm only 15, so compared to other teenage girls, would i be more stocky than curvy? or are girls my age just really skinny? i don't try to compare myself to others, because that often is what leads to self-esteem issues, but i have definitely noticed that they aren't quite built the same as i am. i have a near perfect BMI, and have always been told i have a beautiful body, but for a teenager, aren't i supposed to look a little bit, umm, less voluptuous?