There could be many different reasons for irregular periods. You should see a gynecologist if you are concerned.
Sometimes you can continue to be friend, but sometimes you can't. It depends if you are sick of her or if you really care about her
sometimes, it really just depends on your body. it might affect your period, it might not, but chances are it won't affect you. if your period is affected, or changes when you should get it, don't worry, it will get back on its regular schedule soon and on its own.
You can take a test the day you miss your period. But sometimes it takes a few more days to register the hormone. It depends on the women and the test.
It depends how bad the bullying is but sometimes they just cry and sometimes if its really bad they might selfharm. Bullying is wrong and should not happen in the first place.
You really need to take a pregnancy test. But sometimes a missed period, morning sickness, breast tenderness and sometimes mood swings. But you should really get a pregnancy test done.
It depends. Sometimes you don't get cramps. Think about the last time you got your period and when the cramps started.
I sometimes get really bad cramps two days before my period. It has happen to me a few times. Don't stress it should come. Give it a couple of days
sometimes it may come on time or it may take a month or more it depends on your body!
it depends if you are just starting then your periods haven't really regulated yet but if your older they should have regulated and should be the same each cycle
if it is normal for you to always have 9 day periods then that is how your body is. Other women have periods for one day at a time. Some women usually have their period for 3 to 5. Sometimes 7 days. Depends on what is NORMAL FOR YOU!
it depends on when your mom had her period. if it was when she was 11 or 12 then yes. i think that you should have yo cycle weneva and how eva
well it depends if its not before 15 you SHOULD ask a doctor