I have had 4 miscarriages and no live births, all between 10-15 weeks gestation. My concern is that many tests and thousands of dollars later my doctors just said try agian and we'll see what happens because they have no answers. I did have a positive result for Antiphospholipid Antibodies, at a level of 42, but I was tested several times since and tested negative, then tested at a level of 38 again. What could cause a positive test, then a negative, then a positive? My doctors dismissed it after several negative tests. I have seen a rheumatologist, reproductive endocrinologist, and 2 OB/GYN's. Any ideas since I refuse to try again without any answers, 4 in a row is not chance miscarriages.