My period has been ongoing for 10 weeks

Hi there My period has been going on for 10 weeks. It ranges from red to brown blood , sometimes lighter or heavier flow. Somedays it is more of a brown discharge that ranges from light to thick. I am on the contraceptive Mirelle and am not supposed to get my period due to having Endometriosis as it is very painful. I did have a laproscopy end of July 2018 for my endometriosis. Thanks for anyones help.