Pregmate tests

Does anyone else use pregmate? I bought some a couple months ago and they all expire November 2023. When I open the tests I can already see two lines on it. When I test I've been getting different results. 3 days ago it was negative. The past two days there has been what looks like a vfp but I'm not sure if I should rely on that or if it's just the line that was there when I took the test out of the package. Has anyone else had an issue with this?

Edited to add: I forgot I took this picture. The top test was one that I took and the bottom one is a brand new one I pulled out and haven't used yet. I edited the picture a ton so you could see what I'm talking about. It doesn't look this noticeable in person.