I am 16 years old. Can my period cycle change at my age. This month I have gotten my period its two days late. I haven't had sex but been grided on?

Menses vary. Depending on when you started having your period, it can be very variable. This usually settles down by two years later, but then many things can disturb your period - extreme weight loss, chronic illness, or just plain stress. In fact, worrying about your period can make your period late! How to worry less: Avoid behaviors which concern getting pregnant. Use contraception if need to.