Does every girl have a period?
358968
Theoretically, yes.  In reality, no.  Any woman with a "normal" reproductive system should begin menstruating between the ages of approximately 8-15.  There is, however, a condition called primary amenorrhea, which is the failure to menstruate.  Typically, if a girl hasn't menstruated by age 16, they will begin investigating this potential diagnosis in her.\n\nPrimary amenorrhea can be caused by "simple" (meaning obvious and treatable) factors such as drastic weight reduction, extreme obesity, or malnutrition, or it could be due to something more insidious such as a congenital abnormality like absence of the uterus or vagina, a vaginal septum or cervical stenosis, disorders like gonadal dysgenesis, and diseases like Cystic Fibrosis, Cushing's Disease, Polycystic Ovarian Syndrome, Turner's syndrome or Sawyer's Syndrome (chromosomal disorders), hypogonadotropic hypogonadism, hyperprolactinemia, hermaphroditism, androgenital syndrome, congenital heart disease, congenital adrenal hyperplasia, craniopharyngioma, pituitary tumors, ovarian tumors, adrenal tumors, or Prader-Willi Syndrome.\n\nHormonal supplementation, surgery, or both are sometimes used to correct the condition, depending on the underlying cause.\n\nThere are other cases where women do not get their period, for example, Oligomenorrhea.  This is when a women who did have normal periods suddenly begins experiencing very light and infrequent menstruation.  And of course, women who have undergone hysterectomy do not get periods anymore.\n\nHope that helps!
67532
You should seek professional help if it happens often. If it is just a one time case, no need to worry. Girls who starts having menstruation may need some time to reach a regular cylcle. Women who almost come to menopause stage also have irregular cycles. Many people have irregular menstrual cycles, it is hormonal and as long as no other things wrong with their bodies, they shouldn't worry too much. Excessive worry may cause health problems.
1178533
No it will not effect her period.  She will get her period when her body is ready.  Might sound bad but at least she is masturbating instead of being sexually active.  She is way to young for that so this is alot better for her.
775013
Every girl gets it at a different time.  There is nothing that a doctor can do to make you have your period.  When you are body is ready you will start.
672442
It has nothing to do with your period. I assume you are still young. At your age your period will not be completely regular yet. For a lot of woman their period will never be completely regular. Don't worry about it.
1185126
Just as some girls begin puberty earlier or later than others, the same applies to periods. Some girls may start menstruating as early as age 9 or 10, but others may not get their first period until later in their teens. The amount of time between a girl's periods is called her menstrual cycle (the cycle is counted from the start of one period to the start of the next). Some girls will find that their menstrual cycle lasts 28 days, whereas others might have a 24-day cycle, a 30-day cycle, or even a 35-day cycle.\nThe amount of time that a girl has her period also can vary. Some girls have periods that last just 2 or 3 days; other girls may have periods that last 7 days or longer. The menstrual flow — meaning how much blood comes out of the vagina — can vary widely from person to person, too. Some girls have such light blood flow that they wonder if they even have their period at all.\n\nOther girls may be concerned that they're losing too much blood. It can be a shock to see all that blood, but it's highly unlikely that a girl will lose too much: For most girls an entire period consists of anywhere from a few spoonfuls to less than 1/2 cup (118 milliliters) of blood — it just looks like a lot! It is possible for a girl to lose an excessive amount of blood during her period, but it's not at all common. (In some cases, a girl can bleed too much because she has a medical condition — such as von Willebrand disease.) The amount of blood a girl loses and how long her period lasts can differ from month to month.\n\nIf you're worried about your blood flow or whether your period is normal in other ways, talk to a doctor or nurse. Some changes in menstrual periods can be normal — but only a doctor can help determine the cause of irregular, heavy, painful periods, or no periods at all.
1042065
Sorry to butt in and answer this one because I'm not a girl, but I remember overhearing that last summer, my mom, aunt, sister, and two cousin, all their periods ended up coinciding with each others after several months.... for all its worth
826720
Everybody's body is different.\n\nI went to the doctor's recently regarding period issues (I get mine more often than others) and she said that every lady is different.\n\nShe also said that stress can affect it.
482615
Depo can affect women differently.  I know some girls who spotted all the time... some spotted for a week, and then never had a period... and some still have a normal period.  However your body responds to the hormones is normal for you.
50093
Yes, boys have to bear with their PERIODS so often than girls. cant help the poor boys.
844707
No, some women just dont get regular periods, especially if you do a lot of sports. If you're concerned see a doctor. "we" should have a period every month.
664039
The average (normal) menstrual cycle is 28 days.\n\n\nPs. I am absolutely sure of this. I am secondary school science teacher and I double checked at home in my Medicine dictionary.
1158185
i have had my period for 2 years also eventually when your full grown it will eventually become regular and if you want more information try going to beinggirl.com it really helps!!
389310
I started my period when I was 10 years old which was the sixth grade for me. My breasts had developed when I was in fourth grade(talk about being bullied). It really depends on the person. You may develop early and have your period early or you might just develop early. Don't worry too much though, if you don't get your period soon, it's not that big of a deal. Most girls get theirs when they are about 12 or 13. You sound like you are right on track.
422923
though the risk of pregnancy is low, it is still possible to conceive when a girl engages in sexual intercourse throughout her menstrual cycle.\n\nin others, wear a condom b/c the girl can still get pregnant even if she has her period.
360699
hi you are facing a very common problem with teenage girls.\nThe periods are never regular to being with...don't worry you will start getting them normally in a matter of few months...body undergoes certain changes everytime you have your period...don't worry girl you are not alone :)
949889
Most women have periods between 21 and 40 days apart.  You've still got time!  Chill!