sex on period

Madison

so this guy my sister is friends with asked me to come over drink party and stay the night and have sex it would be my first time what do I say is alchol gonna mess with my period or make it better?? TELL ME WHAT TO DO PLEASE I'M ONLY 14 AND I REALLY DON'T WANT HIM TO LEAVE ME FOR SAYING NO

please upvote this so I can get more opinions