Is it possible to get two Evaps a day apart?

I’m using the 88cent Walmart test and I got a faint line on the first test and then another faint line on the second test. I took the first one on the 16th and the second one today on the 17th. Period is due on the 22nd. Both tests lines come up after 10minutes so I know I should just count them off as invalid but it’s really bugging me that I continue to see a line... should I test again in a few days ? Test that’s flat on counter is the 16th and the test I’m holding with my busted finger nail is today Lol. The test I took today looks pink in person and has color. The test yesterday didn’t have color.