mrsCD - is there any way you could get a different Dr? If not (as it sounds like you are on a military base)? you should try and make a list of everything you want to ask them just so you don't forget, and then make them WRITE down all of the answers. My RE writes everything down for me as I need to re-read the notes. I used to not think too much about my appointments, now I come armed with a folder of things printed out and also have questions on paper.
at one appt, I had the list of what blood tests Dr Beer's group does (for RPL - recurring preg loss) and my RE checked off the ones I had done and there was just a couple that they didn't do (that I didn't really need to have done) and she added to it the tests I have had done that aren't on the list.
That was after my 4th m/c and was the first time I armed myself with info, printed out the result of every test I have had done, including all the blood draws (to see what hcg got up to and back down to during preg and m/cs, learn what my prog level was at the time, learned what my typically levels are CD3, etc). I have a HUGE folder of info. And I printed out any article on the internet I could find that I thought was similar to me so I could ask about any of those too.
I also went through every blood work result and compared it to the normal ranges. A couple of the results were borderline to the normal range, which I take into consideration although if the Dr reads it's "normal" it doesn't seem like it matter too much to them if it's "borderline normal." when in the end, if there is no explanation why you m/c, maybe that is something that should be noted because it's almost out of the normal range.
Make them list out a plan for you too. My RE had a plan that had 3 sections I think? immune issues was one section, uterine abnormalities was another, and bloodwork was another section (clotting issues, karyotypes, etc). I can't remember exactly as it's been since May, 2010 but she had details listed under the main categories and I was tested for every single one.
kgriffin - when is your u/s? i bet you are getting excited!