High or low chance of pregnancy?

Hey guys! So I had unprotected sex during my period about three weeks ago, but he pulled out and again it was during my period so not during my fertile cycle or anything. This morning I woke up and had some spotting when I went to pee, but my period should be coming in a week (so if the spotting means I'm getting my period, it's a week early). I've been getting my period symptoms for a few days now so it very well could be my period, I was just wondering if there's a high chance that I may be pregnant lol 😕