Implantation bleeding?!

I’m expecting my period tomorrow but I’m nervous because earlier this month during my fertile window(earlier this month) I had unprotected sex and we used the pullout method.

A few days after my fertile window ended I was experiencing cramping and sharpness on and off for a couple days with no spotting at all.

Starting yesterday I started spotting very little and continuing into today.

I’m getting stressed that it’s implantation bleeding because this isn’t a good point in my life to be expecting. I’m 17 and I’ve been stressing all this month because I don’t have access to go get a pregnancy test so I’ve become very impatient

I’ve heard implantation bleeding can be brownish and even pink but I’m just unsure because this is all new to me.

Does anyone know this looks like implantation bleeding?