Spotting 9 days before period

So the about 2 days ago I started spotting, it started dark and has now lightened up but isn’t anywhere near like my periods.

I am usually very heavy and always late never early on my periods. My ovulation was a little over a week ago I think (not 100%) but we had a lot of intercourse and I have never spotted before between periods. Could this be implantation bleeding or just my body cleaning out the old blood from the last period?