Infertile?

The boy I am currently seeing claims he is infertile and has been tested, when we have sex he doesn’t wear a condom(I don’t like them anyway) but is there any possible way I could have a child with him if he is infertile because it’s 100% what I want, he already has a kid but isn’t aloud to see him and the mother moved back to Poland but after that he was in a car cash and it messed up his balls and that’s when he was tested, I just want to know for future preferences