Girls have their period once a month for as long as their body needs too. The start it about at 10-13 years old and quit as an adult.
9
You probally just have eregular periods its ok.
You have a 1 in 2 chance of having a girl. No matter how many boys you have had in the past or how many girls you have had in the past, each pregnancy presents the opportunity to have a girl or a boy with a 50% chance. The sperm does not know that it had already produced ,say, 5 boys and needs to produce a girl for you and your partner. So with every pregnancy there is a 50% chance you will have a girl and a 50% chance you will have a boy.
data collected over several time periods is what type of data?
a hard stomach and twin periods in one month mean you have twins on board.
12
They Dont Start i Have Had Many Girl Hamsters And Non Of Them Have Been On A Period.
One! 10-13yrs. If it doesn't starts yet, then visit the doctor!
No.
every girl does
Only if they are girls! But yes they do have periods. Otherwise they could not have babies..... No matter what I'm pretty sure that girl dogs do have periods. So yes animals do have periods!
It is her periods, or see a doctor.
If the girl has already started her periods then yes.
No - if a girl has a penis then she is physically male and thus doesn't have a uterus, as such she does not menstruate.
about 14
during
You can't, you just have to ask her.