12-16 is average but every girl is different, usually the bigger girls will get it sooner than the skinnier ones, but it all depends on you and how your body works!
The avrage age for people to start it is 10-15 so don't be worrie if you haven't started.The average is 11-13.13
The avrage age to start babysitting is 13 years old with haveing taken a first aid course. That is also the leagal age in New Hampshire.
girls are all different. We are all unique. But it is at the age of 12 to 14 is an average age to start their first period. good luck
How to do avrage
The average age is 12.
What is the avrage
Yes it's fine to start your period when you were nine because usually girls start their periods at age 8 to age 12. Yes it's fine to start your period when you were nine because usually girls start their periods at age 8 to age 12.
from the age of 7 to 14
12 b.C.
that's a great age to start because they start at the age of 10-18
Around age 13 or 14
All girls are different but around 12-13 is average. Although you can start from the age of eight, to the age of sixteen.