This is usually caused by irregular periods or a hormonal imbalance.
Periods are rows. (A little trick is, you put periods at the end of rows, or sentences.)
Stable Periods of little change interrupted by brief periods of more change is known as punctuated equilibrium.
A little less than a week
Can you be more specific? No offense, but if you know this little you will not be able to learn much here. Go to your library or buy a how-to book at the home center. It will explain it in detail and be a valuable resource.
Evolution of man.
The question is awkward and frankly a little sexist, even if that is not the intention. Why would anyone need to explain or justify that women are competent human beings?
You bleed a little bit about 10 days after conception but clotting can be a sign of miscarriage
The hypothesis of punctuated equilibria.
The theory of punctuated equilibrium.
If she has started having periods and have sex then yes.
a model of evolution in which short periods of drastic change in species are separated by long periods of little or no change
Yes, you could be pregnant. To be sure see your doctor for proper diagnosis and treatment.
Some people have an inherited disorder in which the body produces too little of the plasma clotting factors VIII (hemophilia A) or IX (hemophilia B). Transfusions of these clotting factors help people with hemophilia stop bleeding.
If you had two normal periods , the chances of you getting pregnant are very little.
Yes it is possible depending on her age. I know this family who little sister got her periods before the older one. The little one was 13 and the older one was 15. So it may or not happen. If your sister is between 9 and 16 then she can get them
no she doesn't kill anyone
Fondue! A little bread, a little cheese, a little white wine, and a little heat.
yes they do but there is usually only a vary little amount of blood.
Yes, Every girl goes through puberty at her own pace. Although most girls get their periods between ages 10 and 16, some start a little earlier and others a little later.
explain your qwestion a little more
um it hard to explain
because of the climate. Instead of having somedays rain, and some days sunny, they have sunny periods and rain periods (weeks of rain).