Thank you all! Test this morning was the same, after sitting I do see a faint pink line on the frer from yesterday but I'm going to wait a few days before testing with the last one, it could still be an evap.
I'm nervous a little because the reviews of the tests I bought claim a lot of false positives, though I tested with water and it was stark white, and when I first started testing it was white.... ehh, I just can't be sure without confirmation!