So I reckon I'm now 9dpo. Tested yesterday FMU got a BFN, didn't throw the test away and came home from work 6 hours later to a faint line. Tested this morning FMU and BFN, but there are another 2 areas that look testy instead of just the test area iykwim, so decided that test wasn't reliable. Tested again at 2pm and BFN but the control look fainter than normal. Tested 3pm with a OPK and got pretty much no line at all.
Gonna try resist the urge to pee on sticks until tomorrow morning.