what is an irrgular period?
366086
An Irregular period is when you DO NOT have a Period every month or they vary from month to month. (example. this month you may come on day 28, and the next month on day 33). In some cases you may not come on at all and skip months.
498060
Heavy periods.  You should see your doctor for a diagnosis and treatment.
11325
once a month\n\nansw3r3r
41735
It's called menstrual synchrony.
524940
Hemorraging is bleeding but also it depends on you. Some women who have endomitrios which makes you hemmorage....It's painful also during your period....
400668
it is due to an increase in hormone release that happens during periods
482867
Maybe nothing. It could be stress that's making you have another period. If you have abnormal bleeding or cramping you may want to see a doctor.
262831
Everyone is different, but what you are describing isn't the norm.  Two periods a month is not usual.  It has happened to me in the past, but it sounds to me as if you should get it checked.  Most likely it will be nothing to worry about but it is a nuisance for sure.  Various hormonal imbalances can cause it, especially thyroid problems, so I think it is time for you to get it checked.
37364
Ever heard of a period? As in the "." symbol. That shows me that you're "just plain dumb". Idiot.
797138
As the other people answered, you may just be ovulating. Another name for mid-cycle pain used by doctors is  Mittelschmerz, (a German word which translated literally means "middle pain.") Mid-cycle cramps  last for 6 to 8 hours in most women ; however, occasionally it can last as long as twenty-four to forty-eight hours and occurs about two weeks after the first day of your last period. Every woman is different. Depending on the severity and frequency, you may want to read about and ask your doctor about Polycystic Ovarian Syndrome (PCOS).
952658
Internal and external rhythm....
1028477
A period, is the bodys way of letting go of an egg that wasn't fertilized.
1022387
the amount of injury time in the period is added to the end
815752
It begins on the FIRST day of your last period. (the day you start) Mother's almost always right.  :)
182927
because it is not a monthly cycle.  it happens every 28-30 days and hence it will overlap a "monthly" period of time
214242
notice that if a remainder occurs twice, then it will immediately repeat.  hence the period is at most 111.  Yes, the pattern is distinctive, thats because 111 = 1 + 10 + 100\ntry for example base 7 with 1/(111) where 111 is in base 7.
759253
the period is the amount of x before it repeats\n\ncos is periodic in 2pi and since nothing is multiplying or dividing x the period is 2pi\n\nphase shift is what is added or subtracted from x, so phase shift is -pi