I used Diane 35, I stopped a month and nothing to go down ...

I've been using Diane 35 for over a year and a half, and last month I had my period and I did not take the medicine and it's already day 20 and nothing in my period goes down and I get cramps like I had my period, is this normal? And if my period does not come this month, will I take the medicine to see if it's coming next month?
Expert answer:

Your symptoms should be because your menstrual period is about to go down and you should expect to come down to start taking the contraceptive again, in fact that your stop (you know why) must have given a deregulated in your menstruation.