Dr. Coulam on the immune board can do these tests and review your records, or can refer you to someone closer who can.
I was tested by Dr. Beer (now deceased) and after 5 losses just as you describe your's, was found to have high NK cells and activity. I was treated with IVIG, progesterone, aspirin, heparin and was successful. All in all, I lost 8 untreated pregnancies, and was successful once with IVIG and twice with just heparin, aspirin and progesterone (and IVF - FET).
It's been a while, and I think IVIG has been replaced with Enbrel andother, easier to tolerate drugs. It was $$$ but my insurance covered the IVIG cost. I live in Alaska and did much of this from afar, so it can be done (testing and treatment) if your reprodictive immunologist can coordinate through a local doctor.
Please e-mail or post if I can answer any more ?'s and I wish you the very best -
Sue