My fiance is infertile

I’m 22 and my fiancé is 34. I love him so very much and I’ve never been happier with him. Only problem is that he wants children, but he has fertility problems. We’ve went to fertility doctors and I’ve had tests ran on me in which the docs says I’m fine but they ran tests on him and he revealed how the men in his family typically have a harder problem with conceiving. The past year when we’ve had sex, it did not end with him ejaculating. He and I both really want children and I don’t know what to do. I could really use some advice.