2 periods in 1 month normal or not?

carmelkiss88

New member
Hi I am 20 yrs old and my periods are always at the beginning of the month. I had my 1st period on march 2nd and it ended on the and it ended on the 9th. But another one came on the 16th and i cramped really bad on the 18th. wht does this mean and is this normal????
 
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