Hi.You are probably having PCOS. It is a hormonal
problem. it can cause irregularity of periods, but don't worry it will not harm your future. You will have to be careful about your weight and don't let any gain happen. Is your family history of diabetes
positive . If so take care of your diabetic status also,as there is increased insulin resistance
in such cases. But it is not at all cancerous.
You may get your hormone profile done . take treatment for regularising your cycles in the form tab. krimson 35
.Don't get disturbed. It is not a serious problem.