Implantation bleeding?

Kayla

I have 8 days until my period, I started to have light spotting that turned into a rusty brown color, this happened for 3 days. My bf and I had sex on Thursday and I started spotting on Saturday. It was nothing out of the ordinary for us when we had sex. Nothing was different. It’s not a period it’s to light and too quick. Is it implantation bleeding? What should I do?