Hi Bexnet my full story is over here,
but basically I had a hysterocscopy with Dr Lower, he found my cervix 100% scarred shut and a 1cm dense patch in the fundus of the uterus (like you I was also told before hand I was a dire case and there was no hope!), I had 6 weeks of high dose estrogen therapy - towards the end this was actually the hardest part made me feel all over the place! and then on the advice of Dr Charles March (AS specialist in the US who I talked to via email) I had an HSG. I got pregnant on the second cycle (naturally) after finishing treatment. I think the HSG helped with this (I did it because I wanted to be sure the uterus was completely clear but it does give you a bit of a fertility boost too, as it flushes dye through your tubes giving them a bit of a "jet wash")
I found that there are various schools of though re: conception post AS among the AS specialists. Dr Lower believes that the best chance is getting pregnant within 3 months of treatment (which is how it worked out for me) Dr Charles March believes that the most important thing is to get the uterus back to 100% healthy state and that after that it doesnt matter when you conceive, for this reason he recommends an HSG and mid cycle lining checks after treatment to see how uterus is doing and further surgery if necessary. I had a hard time deciding which approach was best and ended up doing a combo of both. By the way Dr March will read your emails/notes and review slides for free via email. He is very passionate about helping women with AS. His email address is linked in my original thread I think.
Have you discovered the NGO AS group on yahoo yet? There are FANTASTIC they are a group of around 2000 women with AS and their doctors, they have been collecting information for 10 years (lots of word docs you can download) and you can ask any questions you like, there is a real wealth of information and support there. You have to sign up as its a closed group, but it doesnt take long.
Lots of the women are in the US and have the same kind of insurance issues as you, most of them DO get treatment because AS is NOT a fertility issue, its a health issue and there is a different insurance code used. If you ask there I am sure someone can tell you what it is, hopefully Dr Lower's letter will sort it out though.
There are also lots of pregnant ladies like me, some who have gone on to have more than one child successfully after treatment. The common theme seems to be that those you go immediately to a specialist for treatment seem to fair the best outcome-wise. Sadly there are lots of stories of ladies whose AS got worse after non-specialist treatment. Stick with Dr Lower he knows what he is doing!
If you have any more questions, I am happy to help xxx