Hi, I am Karri.
I think the problem lies in our perrceptions of what is happening.
I could be misunderstanding what you are saying, but I know that low progesterone levels do not create a positive test. What I mean is that if progesterone levels are low, it affects implantation and if implantation doesn't happen correctly, a pregnancy will not progress. His argument is that antibodies can be present that mimic HCG and will actually turn an HPT +. Not saying I buy that, but it's his claim.