No tampon should be left in your vagina for more than 8 hours. Iris Dear Iris, I have not fully yet matured in the breast area. 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.
Thanks, Lisa Dear Lisa, The good news is, you are not the only girl who is experiencing stretch marks. During puberty, many girls get them on their breasts, on their hips and thighs and even on their buttocks. The marks are caused because you are growing so fast that your skin can't keep up with the changes and in your body and has to stretch to accommodate the increase in size. The bad news is that there really isn't anything you can do to make them go away. What will happen over time, is that they will begin to fade and eventually you will hardly see them.