How long did everyone’s implantation bleed last?

Hi, girls. I understand not all ladies experience implantation bleed. ( I didn’t with my first 2 pregnancy’s) but I’m not due my period for another 8 days. this morning ive woke up, and when I’ve wiped I noticed very light pink on the tissue. I just assumed my period has come a week early. So I’ve put on a pad and went about the day. Still no period I’ve wiped again and pink again.

My last trip to the toilet and no pink. Been spotting for a few hours I’d say ( only when I wipe) could it be AF appearing early? I hope not. But how long did every have implantation bleed’s for? X