How should i approach my boyfriend of 4 years about commiting to us having a future and

[Pooh H]

starting a family? I'm at a point where I feel like I've been patient & we've talked about having kids before. However, he still feels extremely obligated to helping his family and in the beginning I admired that about him. Not realizing that it would become excessive. He treats me well, and I know he loves me but this issue is constantly on my mind. I know I should have addressed my concerns with him about this earlier but i was try to be the understanding, nice girlfriend. Now I'm frustrated, and thinking of getting out of this relationship. His mom moved back to town 2 years ago and moved in with him. I have my own apartment. So how do I approach him about working more on he and I? I know it'll probably lead to any argument but I'm at a point where I just need to know what his plan is. How should I approach him about this?????? He's 34 I'm 33