Unprotected sex on cycle days 😦 i need help!!

Hy. I had unprotected sex on 5th day of my cycle(period) day. My man is not sure does he finished in me or not. We was drunk. 🙈 that was been 17 days ago, on 1.st November, today is 18. of November and yestedray is happend something weird, i started spotting when i woke up, but its not my period date, i dont know what that can be. Does somebody can help my? My english is not the best, i hope you will understand, sorry.