I was on the pill most of the time from age 14 to 22. (I've always been worried about pregnancy.) On both sides of my family tree, the women have at least natural C cups, my mother being a DD. I'm totally happy with my own rack, but I'll always wonder if the pill screwed up my hormones during my developing years and resulted in breast tissue not growing as much as it should. Maybe estrogen is turning all the boys gay and all the girls butch, too.