Crofty did you have any pregnyl boosters like me? That's the only thing that I think could give false positive results drugs wise, not anything else you mentioned. Looks like you might be about to do pee sticks for a few days like I did!! My first slight positive was 15dpo in the arvo, but I wasn't going to test any earlier or even at all due to the pregnyl 3.5 days earlier. I didn't get spotting, HEAPS of cramping, still getting that which can be a side effect of high dose progesterone, and is another scary thing to experience cause like spotting it plays with your head as you think AF is coming.
Lots of ladies talk about spotting, especially dark brown which sounds like old blood (maybe implantation blood?!) so don't worry about that.
So do another test in morning with FMU and keep us posted!!!
So excited for you!!!! This could be it, and I absolutely know the shock of seeing those lines when you've never seen them before, it only happened to me on Tuesday!!! Crossing everything for you crofty!!!