Today makes 13 or 14 dpo

Yesterday i had cramping and when i wiped i had some blood so i put on a tampon and like 5 hours later nothing was on it my cycle is due today but no sign of it i thought it Came yesterday ... but i guess it wasn’t could i have had implantation bleeding or it’s to late for that ? Just took a pregnancy test BFN i guess it’s still to early to tell