If you've only had your period for a year, your breasts still have plenty of time. Most girls' breasts continue growing until they're 17 or 18. (If you're underweight, you might not be fully developed until even later than that.) Around then, you'll get a good idea of what your chest will look like. In the meantime, little breasts are nothing to be ashamed of. Take advantage of your flat front and wear whatever you want, such as a tube top or a tank, without worrying about your bra straps showing.

— Kristin Kemp