I tested with a cheapo (under the advice of Mrsflatbread, amoungst others... )
It took a while to develop (for the background to clear up)... so I don't completely trust the results of this test...
but both DH and I saw the faintest BFP!
I'm not going to proclaim BFP becuase it took 5 min to develop (the max according to the instructions)... but hopefully I'll be able to write a BFP post in a couple days
I just read on peeonastick.com that my cheapo is NOT recommended.... what that means, I don't know? it's either insensitive, or worse, gives false positives there was no further explanation of why it was a red rating instead of a green.