Laparoscopy

I have an exploratory laparoscopy on Wednesday after fighting with the gyno who is going to perform the surgery. She said since my MRI and ultrasounds were clear she thinks it might not be endo. I have been on progesterone for almost 2 years now and it worked wonders for the first year and stopped working after. Has anyone had clear MRIs and ultrasounds but found endo during the lap?