Looked a few hours later

I took a pregnancy test and it looked like the faintest and I mean FAINTEST line and then I was just about to go to bed when I just wanted to make sure I was completely 100% sure that I hadn’t just disregarded the test because I assumed I had line eyes and when I looked at it, it had seemed to look more pigmented and clearly there is this a possible positive and I’ve heard it might be an Evap line but I’ve also heard that Evap lines don’t have color and that they are a grey strip