How to tell if it’s an indent or an evap line?

I took a frer test this morning with a 4.5 hour hold. At the 3 minute mark I brought the test over to the window to look (has the best source of natural light) and I didn’t see anything. I set the test down on the windowsill. 10 minutes later I walked back to grab the test to throw it away and I looked at it and saw a vvvfl. It has the SLIGHTEST amount of color to it.

I don’t want to get my hopes up (for obvious reasons), but I definitely saw a vvvvfl! I’m only 10 dpo (which yes I know is still very early). I’ll test again later with a 5 hour hold and maybe I’ll get a vvfl again.

So my question is, how likely was it to be an evap line since I saw the vvvvfl 10 minutes later? Or how to tell the difference between an evap line or an indent line?

It was VERY difficult to get my phone to capture the line (and have it so the tiniest

amount of color) because it was so faint!

Thanks so much! Baby dust to everyone!✨