They're called periods. Four periods make up a game of water polo.
Periods come natural and there is no way to make them speed up or come early.
8
4,028,000,000 years.
business cycle
118 elements.
Well i took one and all it did was keep me up for long periods of time......
No
There were three geological periods in the Mesozoic Era(251 - 65Ma).The Triassic Period(251 - 199Ma),the Jurassic period(199 - 145Ma) &the Cretaceous Period(145 - 65Ma).
when you too stressed you can skip your periods
Periods do not make a pregnancy
Yes. Any surgery can cause your periods to stop because of the stress it causes your body. If you miss 2 in a row, go and see your doctor. Or, if you have a check-up post-surgery, mention to whoever is doing the check-up that you didn't get your period