Endometriosis

So a year ago I was in agony in my right side. I had a scan and I had a cyst they left me to see if it would go and after 7 weeks of agony it did disappear well it burst. Anyway long story short we decided to try for our second and 3 weeks ago I got the same pain exactly a year oh. A Constant niggle on my right side and then i ovulated and was in alot of pain for a few days and now it's just an ache again. I had another scan today but no cyst and the doctor said possible endometriosis. I know you have to have a camera to know if it is 100% that but wondered who else has it and whether it sounds like that?