implantation or period?

sorry for the tmi pic, i just need a second opinion. i'm 4 days away from my period & i can't tell if this is just old period blood or implantation because i know it can look and come around the same time. there's a couple full red kinda blood spots too. i won't get too worried until i'm missing my period completely, but i just wanted second opinions. i haven't had any cramping yet either and it started two days ago, but it was a lot lighter when it started.