Bodies aren't clockwork perfect and may miss a beat for whatever reason. By itself it doesn't have to mean a thing.
i have had 2 periods in 1 month and i have unproteced sex
you are starting puberty
The most common cause of a missed period is pregnancy.
if you mean that you missed one period, and got the rest of them. chances are, you only missed your period due to stress.
It happens every month, but that does not mean in the same place. Lunar eclipses happen twice a year in a 1-2 month period.
It can be possible that a woman can have a period twice in one month. I would talk to a doctor.
1 or 2 times each month
She wouldn't get her period three times in a month - it's not biologically possible. A woman may experience vaginal bleeding for a number of reasons, including irregular hormones and STD's. If she's concerned she should see her doctor to have the problem investigated - identify the cause.
MP3 is mean they toking about year and month in school month 1 month 2 that is mean
Yes, you get them once a month for about 1-10 days, but sometimes periods are irregular.
If you're in the first 1-2 years of your period, it's normal. If not, call a doctor.
calibration period will set depend on the process .in gas industry it is 1 month.