Implantation bleed or premenstrual bleed?

I am 12dpo. When I checked my CM I wiped it on some toilet paper and noticed CM was streaked with a blood tinge . I think it's a dark red brown color almost orange. The only time I saw it was when I put toilet paper up there and pulled it out. I just previously checked again and hardly anything there. Is this implantation or premenstrual? Aunt Flo is supposed to arrive 3/9. I have some slight cramping too but this never happens before period . I has implantation bleeding before with last pregnancy but it resulted in miscarriage. I'm freaking out!