Hi, I am 24 year old woman and I am suffering from ovarian cyst and 1month before I completed by cyst reducer duolton-l medicine but after next cycle I had an unprotected sex and in tension I used i-pill and I got no side effect sign but I am having periods started on my 16th day is it the side effect of that levonorgestrel tablet or is it just I got periods soon. How long it lasts if it so side effect? Need help.