Getting pregnant.

My significant other and I have been together for some time now and we haven’t been using protection and he hasn’t pulled out for over a year. We both want a baby and Im not trying to press on the matter because I feel if I want one I never will get one if I try and try for one. But I want to know that down the road when We are 2000% ready that we will be able to have one. What if I one of us isn’t fertile?