Whew, well sweetie... I just got slammed over the head with the actual start of the cycle with my 13 year old. We had been talking about it since she was 8 actually so I hope this will help you and your daughter. I took her to the doctor for a regular cheerleading physical and we both asked a lot of questions. This is always good. However I wonderd when she may be starting, her pediatrician told us that she she would probably start around 12 or 13 and what to look for(possible discharge. stomach pains)things like that and she also asked me how mine were. So we deduced possible 12 y/o start and went from there. My daughter and I talk about everything, and a generically written book could not tell me about my daughter since these days she is the exception to the "rule" her maturity level as all girls is different. Because we discussed it from age 8, this year when it showed up she knew what to do and was actually looking for it. she started having the discharge the week of, and later on that week she got it at age 12, a month prior to her turning 13. Because we talk, she communicates to me when she is low on wipes and other necessities. And no one else in the house knows that she is on it because she is clean about it while my niece... well we are working on her. note they are only 6 months apart! Communicate with her that is better than any book that I can think of, and itf you can be that candid about that personal nature then when she is older she will know and trust your judgement and opinion on other matters. Good Luck and God bless