Feel like my boyfriend forces me to have sex

So whenever I’m at my boyfriends I feel like I’m constantly forced in to sex. I stayed his house this weekend his parents was away and I couldn’t do anything without him pestering me. If I went to the bathroom he would walk in and take my underwear so I couldn’t put them back on then when I had finished he would be waiting for me outside and take me in to the bedroom for sex if I was on the couch watching something he would turn it off and get on top of me even in the middle of the night he was waking me up for sex. He woke me up and I was really tired and I kept saying I didn’t want to due to me not being aroused the last few times we had sex I was really sore and was bleeding but he put it in anyway and I just lied there didn’t make any noise or anything and half way through he was like are you ok don’t you want to have sex and I said I told you loads of times no and he said he knows that when I say no I actaully mean yes but am playing hard to get and said there’s no point stopping now anyway since it’s already in and carried on. I generally think he doesnt even know how badly he is treating me but it makes me feel horrible and upset and because he puts it in when I’m not even wet I’m constantly getting vaginal skin tears and bleeding and being in pain :( not sure what I can do to make him realise when I say no I actaully mean it