Please help!

SNJ • Just to keep it blunt and not sound extremely selfish all I want to fulfill my happiness and feel important in this world is to have a baby with my fiancé, but of course I have worthless insides. :`(
My soon to be mother in law is in critical care unit unfortunately she's going to pass soon. Like within a few days. Were in a different state and going home tomorrow. My fiancé doesn't have any other family beside one uncle who has lost a leg and severely depressed about that and will try and kill himself after his sister passes away. My fiancé is crying as well as I am. I hate to see him so hurt and I don't know what yo do to help him! Please any advice, please!