Sera que vc tem uma previsao mais perto da menstruacao para me dar??

Nobody can give you an exact date for when your period will start, but your body leaves clues along the way.

There is no set age for a first period: it can come anywhere from about 9 to 15, sometimes later, and the average is around 12. There are a few signs that tell you things are moving forward, but none of them are a timer:

• Breasts starting to grow, which is usually the first sign, and the period often comes about 2 years later, and that varies a lot.
• Pubic and underarm hair, usually soon after, though hair first is normal too.
• A growth spurt, where the period often comes about a year after the fastest growing, and that varies a lot too.
• Clear, white or off-white discharge in your underwear, which can start some months before a first period. Clear, white or off-white discharge is normal in puberty and can start some months before a first period, and it can look a bit yellow once it dries on your underwear. Tell a grown-up if it comes out a different colour (like deep yellow, green or grey), smells strong or bad, changes texture, suddenly gets much heavier, or comes with itching, soreness, pain when peeing or tummy pain.

A period before 9 (or any bleeding or pink or brown spotting before 9), no period by 15, or no breast growth or other puberty signs by 13 means telling a grown-up so a doctor can check. Breast or hair growth before 8 is worth a check too, and it's usually nothing to worry about.

If you want to see where you might be based on your changes, there's a quick quiz on this site: how close is my first period?