Hi Lisa,
There are three forms of treatment depending on size of tumor. #1. Micro surgery, #2. Radiotherapy and #3. Watch and Wait. Depending on your symptoms you could be a candidate for #3 as these tumors grow very slowly, 1mm/year and some stop growing altogether. Your age has much to do with picking #2 and #1 as well as size of tumor. I suggest mailing away for the ANA package and the most recent CD's of the Symposium held in Pittsburgh where specialized surgeons in the field of AN put on discussions of treatment forms, updated information on AN's and genetics, etc.
Whatever form of treatment you must be seen by a doctor who specializes in AN's. There are many different places one can go with highly qualified doctors in Florida, Boston, Canada, etc. How does one pick? Well, there are many things to consider, will your insurance cover you for out of state, the old "gut" telling you after talking with a few doctors is another way most of us chose who and what form of treatment we took. You are doing the right thing by researching, joining this organization so you can get great information, also do a "search" here for "Kate B" who put together info in helping with the decision making process of treating AN's. You can call different institutions or email certain doctors introducing yourself and ask them if they will consult for free as some will, House being one off the top of my head.
Again welcome to our "special club" and sorry you are dealing with this it must've been quite a blow to you and your husband knowing you were trying to become pregnant. There will be many more people introducing themselves shortly to help out with more information.