every month your uterus "prepares" for pregnancy causing what would be the placenta to form in it for the baby. when no fertalized egg implants, hormones shift causing this lining to shed-menses, or your period.
because they are actually girls
Your having a period.
when you get your period you bleed that's why girls wear pads and tampons.
It usually happens to girls from the age of 10-16. Girls usually grow small breasts and pubic hair before their period begins. After that, they can get pregnant when having sex.
Periods usually happens somewhere between the ages of 9 -16 years. You have just developed faster then a lot of other girls if your having your period don't be alarmed people have periods at a lot of different ages.
Getting your first period is part of puberty, but happens at different ages for all girls. You probably started puberty before you got your first period and still got a way to go.
well if your talking about what happens to girls then just put a pad on. k? :p
usually your period but more happens in between
It's probably because they don't understand what it it and why it happens.
IF YOU ARE SURE they are all girls then one is probably having a phantom or false pregnancy.
you will never exactly know when you will get your period however there are some signs that your period is on its way . The first 's signs are growing pubic hair and having discharge which is a whitish stuff coming out of your private about 6 months after that happens you should be expecting your period however many girls a diffrent so results may vary.
Girls can possibly start there period when there 11 or 12. That's a phrase of puberty or a process of " dirty " blood to process out of you body. I'm 11 and I started my period Happens 1 or 2 times a month To me 2 time happens