I don't think there is another way. I also had the surgery and found out that I did not have endometriosis. If your insurance will cover it, it is probably a good idea to do it before you try ivf. Just to make sure.
good luck.
I also have endo... the only way to find out for sure that you have it, is to do surgery. It dosent show up on ultra sounds. Ive had two surgeries to remove the tissue. The last time that i had surgery i had my dr. do a dye test and a full exploritory. She said she could hardly see any endo.. and that everthing looked perfect. SO......... I thought i could get pregnant with no problems, but its been two years since the surgery and no baby yet.. Oh and clomid makes your endo.. grow faster. My dr. never told me that. I read it on a web page and i asked him about it and he said its true. But how else are we supposed to get pregnant???? So im taking the chance. Its worth it to me.. ill do most anything for a baby....... Good luck................... ((HUGS))