First response test confusion

I took a first response test I wasn't able to pee for the full 5 seconds(not sure why lol) and no line showed up not even the control line. I ended up peeing a little more on the stick and after 3 minutes a control line and positive line showed up clearly then about 5 minutes later the positive line started to disappear and went very faint has this happened to anyone else? I'm very confused