I changed my mind about having sex with him

I’ve been getting to know this guy that I met online for 2.5 months. We text, send voice memos every single day. We have only been out on 3 dates in 2.5 months (we don’t live close to one another). Never had sex with each other yet.

Lately, our conversations have gotten more sexual. We keep talking about having sex the next time we see each other. Well, I’m going to his house tomorrow, and can’t help but feel like hooking up with him will be a mistake. I just don’t like the fact that we have only seen each other 3 times in all this time. The times we saw each other are so spaced out.

I still want to go to his house tomorrow, but how do I back out of sex without him thinking that I have been playing games/teasing him with all this sex talk we have been doing? I really like him and don’t want to stop talking to him.