== == Most do not, however some do.
No. Your body keeps that build up of blood in your uterus to support the embryo. The lining is where the egg embeds itself if it becomes fertilized.
yes indeed a girl can have her period while she is pregnant I learned it in school my teachers wife had her period all through her pregnancy :)
No. The reason girls get periods is because when the eggs in there body aren't fertilized they leave the body with blood. But when a woman is pregnant it means the eggs have been fertilized.
No, only in some very rare cases
Yes, all girls have periods. If you skip your period you are probably pregnant. Periods tell you that you are not pregnant.
Girls get periods to prepare their bodies to have a baby when they are older. The blood comes from inside the uterus, in which the wall of the uterus sheds a fluid containing blood that isn't needed. It is needed when you get pregnant. That's why you miss periods if you are pregnant.
Girls get periods and they have it so that while ovulating (getting her period) and has sex she can become pregnant. Men don't have periods because they carry sperm to help get a woman pregnant. And you know that men can't have babys.
They do after they hit puberty around age 12-13 and the periods stop if they become pregnant.
no it doesn't. take a pregnancy test to be sure.
It has happened. They would have to have started their periods, but some girls do start that early.
Not in the first days but in the end, yes.
Because when girls stop having periods, they cant get pregnant any more.
I can happen when there's an egg in a woman's uterus. ONLY GIRLS CAN GET PREGNANT NATURALLY!
no, guys don't have to do anything girls get periods pregnant, have to give birth, and clean the house, mind the kids. do everything.
One can always GET pregnant. You are probably not currently pregnant if you have regular periods.
some changes are pimples,and for girls periods and for boys a liquid that is heaver than water containing sperm which if girls have they're period can get girls pregnant.