When will I achieve my extent?

I am 12. My mom got it when she be 13. Lately I have be noticing that i hold been drinking a lot (I am mean hungry) My breasts are getting bigger by the day, i hold white stuff in my underwear. When will it come? No one can voice exactly when a girl will get her first menstrual interval, but usually girls will get it some time during puberty.
Some girls start puberty at age 9 or 10 where on earth others may start as late as age 15 or 16. Each girl go at her own pace. So don't reflect on that it's a bad article or that something is wrong if your friends start puberty a little earlier/later than you.
At the establishment of puberty, you'll notice that your breasts are developing and you're starting to grow a short time hair beneath your arms. Hair also will grow on your genitals (pubic hair). In some girls, the time from the beginning of puberty to getting the first menstrual length may take simply 6 months, where as for other girls, it may transport longer and can take up to 3 years.
Every girl is different, and near is a wide selection of normal nouns during puberty.
All I can say is that you should be forgiving, it will happen when your body is equipped.
Good luck :)
It will come when it comes. Probably soon.