ADVICE NEEDED HELP!

So i have 3 kids so i feel like i know these things but im 9dpo i started cramping a few days ago thinking my period was going to start the other day i woke up to use the bathroom and started spotting which im kind of confused because my period isnt for another 4 days when i wipe sometime theres spotting on the tissue then some times theres nothing and its none in my urine when i pee ive just never had any implantation signs or symptoms with my 3 could this possibly be implantation bleeding/cramping??