2 days late .. little spotting then nothing.

Im two days late and i've been cramping but no AF. So I just peed and had a little spotting it was a brownish color ..looked like old blood but a light brown. I feel like it's not implantation bleeding bc my period is late or maybe i'm wrong? I decided to clean my hands and stick a finger up there to see if more blood would come out but it was just my regular CM i've been having ..any thoughts? Would you wait longer to test?