The laparoscopy is a surgery (ie with general anaesthetic), so it's not something you tend to forget in a hurry. It's the only way endo can be officially diagnosed, so if you've been diagnosed it sounds like you have had one. Unfortunately, endo does grow back for many women, so needing a repeat lap is always a possibility. The rate at which it grows back varies widely though. From what I've read, even a little endo can cause enough inflammation to interfere with implantation, so getting that under control is a great place to start.

FX for a sticky BFP for you soon.