Hi,
Welcome to the ehealthforum and I am really glad to help you out.
Your concern is regarding the age when you will have menarche. The order of appearance of puberty symptoms is not fixed. Girls notice breast growth as early as age 7 or 8, while others donât start until age 13 or so. The physical changes during puberty are rated on a scale of 1 to 5, called Tanner staging. Both appearance of hair on genitalia and breast buds are in tanner stage 2 and if you have got one of them first, then the other will also follow in a short time. The onset of the menstrual cycles (menarche) begins about 2 to 2 1/2 years after the onset of breast development. Thus, the menstrual cycle can occur anywhere from age 9 to age 15.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are advised to consult your doctor. I sincerely hope that helps. Take care.