Thinking about rejecting a guy just because he’s not my “usual type”

I’m currently dating a guy I had sex with and it was amazing, there was a lot of chemistry, talking, cuddling, etc but after a couple of days I started getting intrussive thoughts about wether to keep dating him because he is not the type I’m usually attracted to. What should I do about this? Have you ever felt this way? Is it just overthinking?