Late period or pregnant???

Marissa

Hi I’m super new to this but I am 22 and always on time with my period, I was suppose to start on the 2nd of October and AF has still yet to come it is now the 6th yesterday when I went pee I had super light pink/brownish when I whipped I thought I was starting my period so I put a tampon on took it out last night to see nothing.. I don’t understand. I’ve read about implantation bleeding but would it occur the same week as my period ?? I’ve never spotted before, my boyfriend and I don’t use any protection and we just kinda figured when it happens it happens.. I took a test with blue dye and it came back super faint but idk if it was just my eyes playing test on me🙃🙃 does anything have any suggestions for me??