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It starts between the ages of 10-16. Once you start it you will have it every month for about a week. It is okay if your body skips a month. Hope I helped!(: -13 yer old girl that started her period at 10.(:

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13y ago
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6mo ago

Menstruation typically occurs every 21 to 35 days and lasts for about 2 to 7 days. It is the shedding of the uterine lining when a woman's egg is not fertilized.

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Q: When do menstruation happen?
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Related questions

Can you fall pregnant while having your menstruation?

Yes you can. It is comparatively rare but it can happen.


What will happen if you rubbed your genitalia during menstruation?

Much the same as would happen at any other time, but possibly with more mess.


Does anything happen on menstruation cycle if you do loat of fingring?

Not at all. It's perfectly normal and healthy.


Will menstruation or ovulation happen after a bilateral ovariectomy?

No, the ovaries are the organs responsible for these events and they are now removed.


What are some changes which happen during puberty?

For males, there is increase in size of testis. For females there is onset of menstruation.


Can you ovulate befour you get your period?

Yes, ovulation always comes before menstruation. Menstruation is what happens if you ovulate but don't get pregnant, the uterus gets ready for potential pregnancy and if that doesn't happen then it sheds ready for the next cycle.


What happen to estrogen and progesterone levels just prior to menstruation?

Estrogen and progesterone levels begin to increase prior to mensuration.


What are the changes happen to the bmale and female at the age of puberty when its come to physical?

There is an increase in the size of the testis in males. There is onset of menstruation in girls.


What happen if a girl didn't get a menstruation for two months?

If there is a chance that you could have been impregnated in the past 2 months, you could be pregnant.


The shedding of the lining in the woman's uterus once a month is called what?

When the uterine lining sheds this is typically called menstruation. Although women on hormonal birth control will experience a faux period in the form of a withdrawal bleed.


Why menstruation is late?

It could be irregular menstruation. If you are the one having late menstruation, I might suggest for you to go the doctor and ask more information about late menstruation. But yes, one option is irregular menstruation.


What will happen to the hymen during menstrual flow?

Nothing will happen to the hymen during menstrual flow, flow has no impact on the hymen at all. The hymen is just tissue that surrounds the vaginal opening, it has nothing to do with menstruation.