Long story short May 4 I hooked up with a guy and we had unprotected sex every day of the week for 8 days straight. My period was scheduled to come around May 22 but last Tuesday the 16th I went to the bathroom and noticed a light pink tint. So I put a pad on because I usually bleed very heavy but by the end of the day nothing just light pink spotting. The next day still just light pink spotting. By the end of the day I actually got a heavier flow. But only when I wiped. This has lasted three days. My periods usually start full blown and last about 5 days. I only changed my pad about once a day. When my period ended the 19th it ended with just spotting. We did have unprotected sex during all this as well. So what could be my chances of pregnancy?