Menstruation

Means nothing. Some periods are 3-5 days and others can be 10 days or they can be one day.

June

It just means that you are either about to get off or you a dehidrated, So no need to worry.

Yes, this is completely normal.

Irregular periods are normal within your teens as it takes time for your body to get into a regular pattern of ovulation, and thus into a regular pattern of menstruation.

If your period is a month late or you miss a period it can simply mean you didn't ovulate that month due to stress or ill health, there are various possible reasons. The odd late or absent period is nothing to worry about, if you miss more than three cycles in a row then see your doctor.

Its called a century! century means 100 years and decade means 10 years

A nine year old may get her period, but I'm not sure what you mean by sooner - sooner than what? A woman will only start to menstruate when she is due to menstruate, the menstrual cycle cannot be sped up or puberty sped-up to menstruate for the first time before you're ready.

Synchronous

It depends on what you mean by 'clean blood' during your period. Your menstrual flow isn't dirty so your blood should always be 'clean' during menstruation.

You can get your doctor to prescribe Norethisterone, this is a progesterone pill so acts to prevent the progesterone drop that would trigger menstruation. You take it three times per day starting three days before your period is due to start, and continue to take it until you want your period to start.

Progesterone doesn't start your period, it's actually the drop in progesterone that starts your period. Progesterone caused the uterus lining to build up, if pregnancy doesn't occur the progesterone level drops causing the uterine lining to break down - menstruation.

The reason that your back hurts right before your period is simply menstrual cramps. The hormone responsible for causing uterine contractions can effect other muscles within your body, and the pain of menstrual cramps can circulate to be felt througout your lower abdomen including your back, and even in your theighs. Menstrual cramps are common but not normal, most women can prevent cramps with simple dietary changes or herbal treatments to regulate hormones, don't just tolerate menstrual cramps.

As long as you're not sexually active and have recently started to have periods it is not uncommon for them to be irregular. If you're worried talk to your mum or gp

It turns brown because it's old "dead" blood. Black would probably be the clots associated with heavy bleeding usually seen at the beginning of a cycle.

It's not suppose to hurt... Go see a dr.

No, taking prenatal vitamins won't impact on your period. Prenatal pills are typically vitamins, which could see you have a better period all together, but won't be a major change.

Typically menstrual flow is red - because it's primarily blood, you may also see blackish coloured lumps which are pieces of the uterine lining. When your period first starts bleeding is light so it will look pink where blood mixes with discharge or brown where blood has gone brown due to it taking time to leave your body and mixing with discharge - your period may remain light like this throughout your first period, or as it gets heavier you may see more bleeding (red).

51 is the average age of menopause for women in the United States, and the normal range is 45-55. Menopause describes the transition when a women stops menstruating and is no longer fertile.

Honestly, that's a perfect description of herpes. See your health care provider for an exam next time it happens. Avoid unprotected sex until you get a diagnosis.

No, it's not possible for you to make your period come faster. Your periods is controlled by your menstrual cycle a domino effect of your hormones between the reproductive organs and brain - you can't speed-up your cycle or skip phases of your cycle to make your period start faster. Certainly drinking coke with panadol won't make your period start any sooner!

It's really no big deal. Within your first yer of periods it will spread out more. If not ask your mom or doctor.

Spotting is just when there are small amounts of blood in your discharge. If this is just before your period then it is likely just the start of your period.

there is no set time as to how long or when your period will last. If you don't want to use a tampon, you don't have to. I do encourage you to at least try one (start small) so you can see what you like best

Yes, of course the morning after pill will affect your menstrual cycle - that's the whole point in taking it! The purpose of the morning after pill is to delay ovulation or prevent ovulation, thus can prevent or delay menstruation, the sudden rise and drop in hormones can also result in a withdrawal bleed.

Various things: Pregnancy, illness, birth control, being a teenager, menopause...