I cannot be 100% sure but it does look like an evap line. I've read online that faint positives will still have some color but be very light. You line just looks white.I hope you get your BFP soon.
SSBD.
When in doubt get a first response early, no evap lines to contend with and I have never had a false positive or negative with it(5 pregnancies) I could see something but couldnt tell one way or the other on your picture. If the line has color and is not gray or white and came up in the time frame, it may be a BFP. Good luck