Has anyone ever had a miscarriage as a result of?

Their blood being too thick? I recently had 2 miscarriages and after the 2nd my doc did more extensive bloodwork and found that my anti-thrombine level was too high (I think), which meant my blood was clotting up around the fetus. He said it meant my blood clots too much. I lost my insurance shortly after I found this out so I have lots of questions unanswered. I think he mentioned something about aspirin and possibly some kind of shot. Has anyone ever had this problem and what were your experiences?