Hello and welcome theresep!
Im sorry I have no answers for you as I havent been thru all the tests yet but just wanted to say Hi and wishing you all the best for achieving the sometimes seemingly impossible pregnancy. If you are having probs with the lingo (I do!) there is a thread that explains them. I have been TTC for 17 months and like yours my DH is clear so i am heading in tomoro to the FS for the 1st time, am really excited about maybe getting some tests done and finding out a bit more. All my blood tests have come back clear as well but will need to do the bigger tests am a little nervous but seems like most women on this site have had these tests.
Best of luck with finding out info on the laparoscopy am sure someone here will share there knowledge on it.