Why don't i have my period if i'm not pregnant?

is this normal I havent had my period since august 15 I havent had sex yet so I know im not pregnant what is wrong with me?

When you have a late period or missed period it could be a sign that something is up. There are many different reasons for late periods but if the problem continues for more than one menstrual cycle, make an appointment with your doctor to discuss the issue.

Missed periods do not necessarily mean that you are pregnant. If you’re sexually active and have missed a period, then it is worthwhile to take a pregnancy test. But you stated you've not had sex.

If you have a late period and a negative pregnancy test, then consider whether or not you’ve recently been sick, gained or lost a significant amount of weight, have been under excessive stress or have taken any new medications. All of these things can affect your menstrual cycle and cause you to have irregular periods. Additionally, certain types of birth control, including the birth control pill, Depo-Provera and Norplant, can cause you to have menstrual cycles disturbances.

Reasons for a missed period:
-Any woman with stress, rapid weight loss or gain, illness, drugs (certain tranquilizers) may have a disrupted cycle
-Sexually active pregnancy
-Using the Pill (Pill brand is too low in estrogen )
-Former Pill user body hasn't yet adjusted to life off the pill; see doctor if periods don't resume in 3 months
-Using Mini-Pill, Norplant, or Depo-Provera common side effect of progestin-only methods of birth control — drug is probably suppressing ovulation as well as period, effect may be prolonged; most common among new users of Norplant and long-term users of Depo-Provera

Again, if the problem continues for more than one menstrual cycle, make an appointment with your doctor or health care provider to discuss the issue.

u need to go to a doc and tell them and tey'll tell you k

Lets see you might be irregular I was I didnt get my period for months and now that I take birthcontrol I have my period every month! kinda sucks but any ways yea you might be that ... I think you are.. go to the doctors they usally give you pills for that.

thank you oh and I told my mom october and she didnt say anyting

a lot of girls around 15/16/17 have times where they stop for a bit, so its unpredictable when their period is going to be. I know they are a fw tablets that help you and give you a bit of an idea when your next period will be but I'm not too sure what they are called .. if you go to your doctors and you ask about these, they should give you some
xXx

thank you

somethigs wrong in the inside

love rere666

WELL LETS SEE I HAD THE SAME PROBLEM TWO YEARS IN A ROW I HAD A CYST THAT WAS CAUSING ME NOT TO HAVE ONE AND WHEN I FINALLY DID HAVE ONE IT WOULD GO FOR LIKE 3 WEEKS AND IT MADE ME WEAK BECAUSE MY IRON STARTED GETTING LOW...N E WAYS TO TOP IT ALL OFF I HAD TO HAVE SURGERY ON THE OVARIAN CYST BOTH YEARS SO IT SUCKED!!! GOOD LUCK TO U !!