Personally I think this test is the devil.

I took one back in July and it came back "almost high" (test line was almost as dark as the control), and I freaked out about it all month. Then I got a BFP in August, and even though it ended in a loss, I A) obviously still have eggs left and B) one of those eggs was able to get fertilized!
I think it's better to get this kind of test done at the doctor, which is what I will do if I have concerns in the future. So don't worry about the test results!! GL!