Rational fear?

I was a later in life child - my parents were in the mid to late thirties when they had me. There are photos of me with my grandparents but I don’t remember them. My mum died of cancer when she was 59 and my father did better and lived to his 70’s but had a long battle with Parkinson’s and then died of a stroke, which is a year after my beloved father in law died of cancer. I don’t have children but I do worry about not being here with my husband and not being able to do all the things in my life that I want to as they are mostly long term goals. if I did have children I know that I would want them to have known those people mentioned above. Big hugs @"Patti J" xoxo