Bfp then bfn’s anyone else?

Hi, I’m so confused I’m currently cd 52 I had previous bfn’s up until cd50 where 2 tests showed bfp even though faint. Cd 51 I did a digital test that showed not pregnant but dye showed vvvfl bfp. Rang Gp who sent me for a blood serum pregnancy test, results should be back Tuesday (due to bank holiday weekend). Today I decided to do a dye test which showed bfn. I didn’t use fum as not used fmu on any of them. Has anyone been through this and should I get my hopes up or not?