Oh so sorry to hear. But, so happy your Dr. listened to you, you knew something was up and she listened. I'm relieved for that. I'm having dinner tomorrow with a friend who had endometriosis. I can ask her more about it if you would like? She had surgery (for what exactly, I'm not sure. But I remember she was in a ton of pain, so they went in and took care of that) and a month or two later she was pregnant! She now has a beautiful baby girl who turns one next month! The good news is that your Dr. listened and now you can plan a course of action.
*HUGS* My mom also had endometriosis and was able to conceive 3 times so don't give up hope. Look into all the options for surgery (at least there used to be a few different ways to remove), some come with more risks than others. Take the time to get educated so you can make the best decision for you and DH.