Evap line or positive??

Hey Ladies!

So little back story, I’m a mom to a beautiful 14 month old little boy.

TGIF I decided I’d have a drink after he went to bed, so I had a drink, then I felt sick. I ended up taking a pregnancy test (since it was the same feeling I had when I found out I was pregnant the first time). LO AND BEHOLD, got this back. I’m still 4 days before I’m supposed to start my period.

When I looked at the test about 2 minutes after there was nothing and I don’t know exactly how long I left it, but it wasn’t more then 15 minutes.

I read that an Evap line has no colour? Anyone have any experience with this??