Go to your doctor
It can take anywhere from three to sixteen weeks before you start having a period, and could take up to two years before it normalizes again.
It's your period that could end anytime then you expect it to finish
it could be from stress
For one thing if your first menstrual date was less than 1-2 years ago then it can be irregular. For example, you get a period in July and August but don't get another one until October then your cycle is just regulating. However, if you have regular menses then there is a possibility you could be pregnant.
Flu symptoms does not mean you are pregnant. If you had a period after October 30th, you are more than likely not pregnant. I would not worry about this unless you miss a period.
You could be. Take a test
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Well it could be a sign of pregnancy because you might have missed a period. But if not its not normal.
Because some girls may have an irregular period.. or if your sexually active it could mean yoor pregnant..
get a HPT or you could be stressed. sometime my period comes late when i am stressed!! but then again my periods are irregular never the same time!!
Yes, your period isn't determined by the calendar date but is determined by your menstrual cycle - if your menstrual cycle was only 21 days long then you could menstruate on the first of the month, then again on the twentyfirst of the month.