There is no set age for a woman's menstruation to begin or end.
Menstruation can begin anywhere between the ages of 9 and 18. The average age is around 13 or 14
because puberty starts at the age of menstruation, that is the age at which the body is developed enough to begin with the job of reproduction.
Menstruation typically begins in either late Tanner stage II or early Tanner stage III of puberty.
The age of the onset of menstruation varies depending on the woman. Most women begin menstruation sometime between the ages of 9 and 13, however some women start earlier or much later.
No, menstruation and the status of the hymen are not related in any way.
Cause the walls in your uterus are breaking, so you bleed. It means you can now get preggers.
You can't stop your period once it's started - although there are medications to delay menstruation or suppress menstruation, there is nothing that can stop menstruation half way through because the process has already begin.
ovulation starts 14 days before menstruation
That may be Premenstrual Syndrome , the symptoms that begin a week before menstruation like natures reminder that you will be starting you menstruation soon.
Anywhere between 10.5-18. It's different for everyone. The average age is around 13