ladytafs~
By all means - get a second opinion. You have that right and I believe that he will understand this. If he doesn't, then he isn't a good doctor. Many doctors know and understand that we (as women ttc) don't want to give up... but they just don't know what else to do for us - so seeing a secondary RE is a good idea. The worst that can happen is that you hear the same information for a second person.... but we will all hope & pray that you don't.
Remember YOU are the patient. You deserve to get the answers and make certain they are the most accurate answers at that!!! Good luck to you and keep us posted.
Hugs and babydust --- Jen