implantation???

so yesterday i went to check my cm ,like i do every morning ,an noticed a really small amount of blood(light/bright red) in it. i put a tampon on just incase an just a tiny bit mixed cm in the first hour since then nothing. glow says my period is due the 30th an i had sex about 4-5 days ago on my peak fertility days. Is there any chance this is actull implantation.i dont want to get my hopes up for nothing. Thank you