Pregnant or just a evaporation line?

So I’m due my period in a couple of days…and I just had the feeling I was pregnant. So I took a clear blue 6days early test( which you can take before your period is due). I read the result after three mins as recommended, BUT there was no line in the window. However after a couple of hours passed I checked the test again and saw this line? I don’t know what to think of it, because the test was sat for a while I’m thinking it’s just a evaporation line but then other ppl are telling me they’ve been positive and their line shows up like this after a couple of hours. I’m not sure. I will do another test tomorrow morning to see if I notice anything. Anyone had something like this happen too?