Question!!

Ok this may sound dumb but after having a chemical pregnancy about a month ago. I'm overly paranoid. And my doctors appointment is a week away. Ok so I got 3 CLEAR positives. A faint line showed up at first, and about 10 min later it was VERY dark.. So my test that I took, I sat them down.. And every now and then lll pick them up and glance (because how exciting is it to see TWO pink lines!!) but the used test get lighter every day that they sit there. Does that mean anything??? Or is it normal for them to fade after a day or two..