Never! (Not yet) I got my period when I was 11, but now I am 17 and I am barely an A cup. I'm a 32A and even then I sometimes gap a little. And my mom is a DD - was an F when pregnant. Most women in my family have large boobs. The only other one with small breasts is my dad's half sister, soo don't know what happened with me! I've learned to accept it. Because I am small all over, the small boobs fits me. I never have to worry about looking too revealing. It is easier to pad your boobs than to bind them down.