I'm so glad you're getting some answers. There is lots of treatment now for immune issues - much stronger than baby aspirin, even, like heparin or IVIG. I'm not sure where you are but there are REs that specialize in this in many parts of the US - get a 2nd opinion if you need it! Since you know now you can get pregnant, they just need to address those immune issues so that you can stay pregnant! Best of luck to you, Lisa!
I noticed you're from NY too. Do you mind me asking what Dr. you are using. I had the same issue happen to me with the beta going negative and he has adjusted my protocol to help prevent it from happening again. Just curious who you using. I'm using the Sher Institute of Reproductive Medicine (SIRM).