Is something wrong with me?

So I’m not trying to get pregnant or anything but iv been having un protected sex for over a year with the same person and I haven’t gotten pregnant. Like I said I haven’t tried to get pregnant but at the same time I haven’t gotten pregnant if that makes sense lol. I have regular periods and I ovulate every month. I’m just wondering if this means I can’t have kids or what? I’m 19. Let me know what you guys think.