Is this rape?

I was in a serious relationship at the age of 15. This was only last year and the boy I was with was not very nice. We had the same friendship groups so we was out together everyday but we was on and off everyday aswell. He used to put drugs in my drink without me knowing. I could hardly walk while being on drugs but I know things happened between us. I couldn’t say yeah to any situation even if it was sexual or not but we still had sex everynight while me being on drugs but I had no ability to say yes or no. I haven’t told anyone about this, i just need advice.