YES I UNDERSTAND THE TEST IS DRY!

I took this and I thought it might of had a faint line but nobody else saw it so I left it alone until a few hours later I looked and it was positive. I thought evap lines were colorless and thin. I had a “period” after this for 3 days and it was heavy at first then got super light and my periods are normally 5-6 days so that’s not normal. Is this a positive??