Dating with a 2 year old

So any tips or advice on dating with an 2 year old. How soon is too soon for someone to have your son around someone else. My son is potty trained and sleeps in his own bed now.

I’ve been dating this guy for 4 months he also has a 4 year old. He’s older than I am 28 and I’m 23. I’ve been single for 2 years and I really like him and with him I do will like to get serious. When he comes over I always make sure my son is bath, ate, and in bed before he does.

I’m comfortable with him. I just don’t know what I’m doing you guys. I was with my sons father for 5 years and that was my first and only bd.