Taking the morning-after pill changes the menstrual cycle?

Taking the morning-after pill changes the menstrual cycle, because it is already the third time I take only one month, and my period has already come, but is not 9 days left? What do I do?
Expert answer:

The morning after pill was only designed for emergency use in certain special situations, its very frequent use will lead to serious health problems, the first of which is menstrual irregularity. Needed to use 3 times in the same month urgently needs to rethink on the contraceptive method that you will use.