I have an 18-year-old daughter, a 13-year-old daughter and a 9-year-old daughter. My 18-year-old got her period when she was 14, my 13-year-old got her period last year and my 9-year-old just got her period yesterday. Funny how the age to get a period is decreasing so quickly! Anyways, she was at school and I got a call from the nurse saying she had gotten her period. I was pretty shocked, but I stayed cool for the sake of my daughter. I was wondering if this is normal because when I was growing up, the "average" age was 15.