Evap Line or Positive test?

I gave birth in October and am only 3 months postpartum. I stopped breastfeeding a month ago and have had a few pregnancy symptoms (but they could also be symptoms of my period returning), and I don’t know what to think. This line was a little lighter when I checked the test 3 minutes after I took it, but now the line is darker by a tad. Is this an evap line?? Positive??