Need advice and help

There is most definitely a faint line on this test. It came up as soon as I tested. The thing is I am at least 3 weeks late and have been testing every few days for weeks now. This is the 1st test that showed a real faint line. Really do not trust it and so tired of testing. But will take another test soon. Just curious has any other ladies had false positive faint lines with first response 6 days sooner tests? And has anyone been real late and didn't get a positive til weeks later???