Watching death.

So, my SO's aunt who he is very close to, is slowly dying in a hospital bed due to cancer. It has spread so much so fast that there is nothing more doctors can do. Her death is inevitable and it will be slow and painful. I can't help but think maybe we should stop trying to have a baby or at least put baby L on hold, with all that's been going on. It's been a roller coaster of emotions going on this journey. I've asked but, he always says he does 100%. I would much rather take a break to deal with this family mater but, I don't want to hurt his feelings as it's already a very difficult time right now for him. Maybe I'm just reading into it wrong? Maybe we should keep trying? What would you do?