How much longer should I wait???

I am currently going to school to be a nurse and just recently my future has been weighing heavily on my mind. When I see my future I see me working as a nurse with a family and a loving husband. But the problem is, the guy I have been seeing for the past 4 years constantly reminds me that he never wants to get married or have kids. Don't get me wrong I love him with all my heart and I would do anything for him but that husband position in my further is suddenly a blur. I keep telling myself that this is just a stage and don't do anything drastic but at the same time if he is serious about the whole marriage and kids thing should I keep waiting. I am 22 and he is 24. We are still young I understand but I still want to known that I'm not wasting my time. Someone please help! 😔