Anyone experienced this?

Last Saturday I took a pregnancy test which was obviously positive. I then took another Monday and it was fainter. I’ve been testing on and off the past few days and my tests have either been negative or positive but faint (but not so faint that I have to squint). I assumed I was having another chemical but I’m now passed my period due date with no bleeding and still faint tests/no line progression. Has anyone experienced this and bled eventually? I just want to move on and try again next month but obviously can’t if I haven’t had a bleed yet...