I blacked out from drinking too much and found out I had sex with someone but have zero recollection. Is this rape?

I was informed the other morning when I woke up that I had apparently had sex with this guy. Ive known him for 2ish years but never was sexual towards him or initiated anything. He kept buying me drinks and I took them. I may have flirted with him but I don’t remember? My friends said I became visibly drunk as I went mute however I was somewhat able to walk around and keep my body up. My friend was gonna take me home then lost me. Apparently this guy who I thought was a “friend” grabbed me and took me back to his apartment. He claims that I didn’t seem drunk. My friends tracked me down and banged on the door till he answered. They found me in his bed without any pants on. They said I opened my eyes but was not speaking and clearly out of it. I woke up and my genitals were sore the next morning. However I showered and washed my clothes I had worn, so I feel like there’s no way to report this anymore bc I don’t have the evidence. Also, after I showered I noticed blood coming from both ends. He chatted me the next morning I need to take a plan b because he ejaculated inside of me and I was extremely confused. I’ve been panicking about this because I feel like it’s my fault. I think I flirted with him earlier in the night but I don’t remember anything after that we went to the second bar. Idk what to do and how to feel. I fear there’s no way of getting justice bc I didn’t collect the evidence. I’m scared because I’ve recently been informed about a Handful of girls who claimed he made them uncomfortable (idk exact details) i don’t want this to happen to someone else, but I feel like I won’t be believed