Bring it Girls I Know U Gonna have Opinions about this One!!!

Background: together year and half.

Me: 2 kids never married

Him: 1 child never married

Suppose to move in together hasn't happened yet. I do not know where he lives and have never met his family. I have only met 2 work friends who he says are like his family and one friend he grew up with. He lives with his sister her husband and their kids. So he says he likes to take things slow in the whole meeting his family cause he brought girls around before and it didn't work out. His ex who he was with for two years only met his family once. I don't believe it. His baby mama only met them after a year and a half. So then there's the issue of where he lives. He says his ex's brought so much drama to his sis house that he doesn't want that again. He says his friends don't even know. Is he just being super cautious or should I be concerned. We are not together a lot only on weekends but it's every weekend. We talk/text all day everyday and talk before bed every night. He is always there to talk etc and never goes MIA but am I being naive?