Faint line on walmart and dip strip..but

But nothing on a frer? I don't get it..

It can't be because of miu because it says right on the new frer boxes it can pick up 1miu and if it only gets darker your pregnant..I'm so tired of the games.. 10 dpo 3 days from af..idk what to think...am I wrong to even have hope? I'm so tired of let downs after 14 cycles..