hello this sounds quite unfamiliar that due to no reason at this age you have no cycle for last three months. pregnancy is surely a remote possibility as there was a tubal ligation. the endometriosis is also unlikely could cause stoppage of cycle. you definitely need some hormonal tests like thyroid or prolactin to know the balance inside as well as an withdrawal bleeding. meet your doctor for an evaluation.
i had a tubaligation 4 years ago and also have a minor case of endometriosis i am only 27 and my period stopped completely 3 months ago no more spotting in between nothing i am not stressed no change in daily habits diet weight nothing all urine pregnancy tests have been negative what could be wrong with me?