I’m so confused

So i got a faint line on a frer that got lighter so I thought it was a chemical. So now my period is a day late so I took another test with an hour hold and got a faint line. But I’m really confused because the line is so much darker when I look at it from a slight angle than from right above it. Does this mean it’s not a real line and just a shadow?

Slight angle

From right over: