But the range of ages is from 9-16 and girls at both ends are normal. And yes, if you are having sex and you are menstruating you can become pregnant. Thanks, Soap Dear Soap, Breast development is usually determined by genetics. Look at your mom, grandmoms and any sisters or aunts you may have. You will look like them more than you look like your friends.
Most girls continue growing breasts for a year or two after they start menstruating.
I am kind of maturing faster then my friends who are all my age. Some of them haven't started their periods but only a few have and its embarrassing to tell them I have started. Also I use tampons but the blood still ends up on my panties. So I have to use a pad and tampon. Thank you, K.M. Dear K.M., You don't have to tell them until you are comfortable and that will happen soon.