Implementation bleeding?

I’m 10 DPO and I tracked my ovulation (opk) so I know when I approximately ovulated. I usually start my period exactly after I get a positive ovulation test. This morning I woke up I went to the bathroom and when I wiped there was a very very light spotting of pink with discharge. then I went to the bathroom a couple hours later and nothing sense and it’s been about five hours. Could this be implantation bleeding or could it be my period coming? has anybody had this before and I did it pregnant?