Implantation bleeding?

Ladies help! Im 18, and i started spotting 11 days before my period, it was light pink, and normally before my period i spot 2 days before and get all my pms symptoms, but i have them now and i just stopped spotting 5 days after it started. I never heard of implantation bleeding being that long until i did my research. Is it implantation or should I wait for my period which is next week?