help please! maybe TMI

Hi everyone I posted this in the tmi section but nobody helped me over there. Anyway I took a test Thursday it had a faint line then I took one yesterday and the line was darker. Then I took one today and the line is lighter again almost invisible! On 2 tests that is today. Then I've gone and checked and I'm losing CM it started out just brown and now it's just pink. This is a picture of the test. Does anyone know what could be happening. You don't need to sugar coat it because I think I know what's happening. Just thought I'd seek some extra advice. Thanks guys!