Hello,
It is normal to find changes in menstrual cycles like heavier or longer than normal periods, bleeding or spotting between periods after Essure procedure but these are all temporary side effects and should become better with time.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.