Urinalysis - blood in pee?

I have those urinalysis strips and it showed that I have some blood in my pee. Sometimes it shows up specks of blood but this time the square full on turned green (instead of yellow). I am 8DPO. Could it be due to implantation maybe? :D I know it can easily be an infection but this much blood never shows up on it for me, except if I’m on my period...