Help, am I pregnant or am I getting false positives?

So I accidentally brought tests that are supposed to be taken the day of your period. ( I am 4 days away from my period) so I took the test anyways using fmu. I got a vvvvfp. So I went to the shop and brought a fr test ( 6 days before your missed period). I got a bfn. Was it because It wasn’t fmu? I’m going crazy trying to work it out. Any options would be helpful.