Baby or no?

Gl
Okay so my fiancé and I are trying to decide if we want to continue ttc. Our one big problem is that he doesn't want to raise a child in the house we are in now. We both have jobs and are stable and our house we live in now is paid for, just small. We are close to family and I am ready. One of the biggest factors is his mom is terminally ill and I want her to be in my child's life. But my fiancé is scared we are rushing and not doing it the right way. Anything thoughts?