So you’re waiting, but nothing’s happening. When is it going to hit? You know, puberty? When does puberty start? Puberty can start when you're 7 or not until you're 13, but it usually starts when you're around 10. The process can take anywhere between 1½–4 years. Generally, girls can expect their first period about 2-3 years after the first signs of breast development.
Here are some clues that will help determine when you will start your periods and begin puberty:
- Heredity: Ask your mum or other female relative how old she was when she had her first period. You'll probably have yours at around the same age.
- Race: Girls of different races show signs of puberty at different times.
- Weight: Very thin girls begin to menstruate a bit later; heavier girls may begin earlier.
Girls who develop earlier than most of their friends often feel "weird" or self-conscious. That's normal. But girls who develop later than most also feel strange, sort of left out of the club. Remember, eventually all girls become young women. You might ask “when does puberty start?” but it will start when it is – and you are – ready to.