Tested negative yesterday but then this morning thought I could see something. I'm 10 DPO, 21-25 day cycle.
The first image is the straight photo and even I can't see it on this, but then the second is one I tweaked the contrast on (also usefully highlighting how much my sink needs cleaning). Am I imagining it? I took the photo maybe half an hour after the test, but I thought I could see the line, if it is a line, within a couple of minutes of testing, so within the timeframe.