I'm scared of having kids and repeating the same family history

So this guy I dated on and off for years now he's got releaseed from prison and he has a son and he talking about having kids with me and i truly is not physically attracted to him ! Cause he knows me pretty well and know's that I have a bipolar disorder and I feel he tries to take advantage that so i blocked him completely like I really want kids someday but my biggest fear is death while giving birth and also want somebody who's able to be around alot i fear if have a child it might repeat the same cycle of my problems and my family history cause my father wasn't active in my life and was alsovery abusive to mom when I younger so I don't the same toxic relationship after the history repeats!!