Can emergency contraceptives damage ovary or cause endometrium if taken in excess? I had previous problem of having Irregular periods, but never used i pill. But took three i pills last in the month on july...withdrawal bleeding on 3rd august. Pregnancy test is negetive. But not my periods since then I am worried. How can i regain my proper uterine function again without taking hormonal birth control to occur mimic periods. I want my natural periods to come. Is there any way?