Is this it? 12 dpo bfn , 19dpo ?

Hani

So i took a FRER on 12 dpo and got a stark white bfn. And then i thought im out but periods did not come so i randomly tested today at 19 dpo on clearblue and got this within 1 min time. Could this be false?? Im shivering. Is it possible for it to be false?