I am seventeen, and according to the Tanner Stage Calculator for Girls I am already mostly out of puberty, at 4.7. I have reached my maximum predicted height, etc. However, my body is still straight like a younger girl's. My hips have hardly widened, and my breasts are still a small B-cup. My butt is also almost completely flat. I am pretty skinny (107 pounds, 5'4''), and can't seem to retain weight. My sister is rather curvy, and my mother is at least a large C-cup. Everyone tells me that I have a pretty face, but it still feels like something is missing. Is there something wrong with me? Will I never look womanly?