3 days late but negative test

I’m so confused cause I’m never late I’ve always had my period come exactly on time has anyone ever had this happen with regular periods? I took one test that looked like a faint line but now I’m thinking it was an indent because when I took another of the same brand and test there was no line just a bfn and digitals are neg I just feel so nervous now cause I miscarried back in sept and now I was hoping this would be our month but idk everyone around me is pregnant and I just can’t take being the only person I know personally with issues anymore!! I know people say that they didn’t get a positive till they were weeks late but how does that work because when I miscarried my hcg levels were low then went up then dropped so if you don’t test positive on a test isn’t that a sign my hcg is low 🤦🏻‍♀️ this is so frustrating and confusing

Also last time I was preg I got a really faint line and positive digitals

This is the test I took yesterday