Antsy for marriage

I’ve been with my boyfriend for six years. We’re still really young, both 23. We know that one day we can’t to get married and have children. I just feel like it’s never going to happen. I want to have at least one child before I’m 30, or at least be trying. We’re okay on our finances, they could be better. I just feel like we’re never going to progress and move on to the next step. What would you do? Would you talk to them about it??