Evaporation lines???

So I took two tests, the first, I waited and it was negative. I then went out for a drink and came back and saw a line and my mouth dropped. Then I took another and the line is less apparent but it’s still there and it too also showed up after the recommended time. Thoughts? Help? I just had a baby a couple months ago so I’m freaking out 😓

Also to mention, I got this test from rite aid and the reviews on them are about having false positives.