I don't know what to do

So I went out with my friends last night to the bar like every Friday night. I remember this guy was hitting on me  but that all I remember I can't remember what happened after that but i woke up in my own bed in the morning. I called my friend earlier and she said that I was going with some guy somewhere but I didn't say where. I'm kinda scared at the moment and don't know what to do.