Positive or Evap line?

This line showed up within 6 minutes of taking my First Response PT. My partner and I aren't actively TFB but we have talked about trying soon, so we would be happy if it were positive. I know about Evaporation lines but I thought they are supposed to appear after allotted time window? This is my first time taking one and it's night time now so I should try again tmrw but wanted to see what y'all think. First picture is original color and second is slightly darkened, but both the same pic taken within 5 minutes of taking test. 
Also, my period was supposed to start this week and I thought it did yesterday, but it was very light and scanty blood and today was barely any as well (my second day is usually heaviest). Could this be implantation bleeding? 
Sorry for the long post. Please let me know what y'all think! Thanks
EDIT: here is a photo with flash on and slightly darkened taken at the same time as above ones