Advice or am I nervous?

So this upcoming Saturday, I’m having my dad meet a guy I’ve been talking to for the past month and a half. I’ve never really had my dad meet any of the guys that I’ve spoke to, and he’ll be the first. I explained to him (the guy that I’m talking to) that I’m not close to my dad, and that I don’t know how he’ll really react. I never even brought up my relationship to my dad, and i don’t even know how to approach the topic. My mom had told my dad about my relationship, but neither has he approached it to me. Anyways, am I overthinking this entire thing, or do any of you have advice on how I should approach this? 🤦🏻‍♀️