Discouraged :-/

So today I officially started AF just feeling a little down we've been trying for over a year and I know there are people on here who have been trying for a lot longer than that and now both our families are urging us to get checked and my fiancé at first didn't want to but now that I convinced him I'm scared to do it myself I'm just terrified of the fact of what if I can't have children just ranting