How to adjust when the man you’re dating moves in?

Hello everyone. I’m just looking for some solid advice on this matter. I (28f) have been dating this guy (35m) for 6 months now, he has 3 children (all by his ex wife). We’ve known each other for 10 going on 11 years, it was never anything serious between us until now. I am a single mother of 1 (5m) and I have my own place and career. I have never lived with anyone before and I’ve only ever had one real relationship in my life. Today he asked me if my son and I would have a hard time having a man in the house? To which I replied I’m not sure because I’ve never had a man in the house and I’ve never experienced growing up having a man in the house. He said that maybe I should do some reading so I know what it may come with and to see if I’m ready for it. Are there any tips or advice that anyone could give? If more background information is needed I’m willing to share that. We don’t plan on moving in together anytime soon.