Obviously having a family is a big decision so perhaps sit down with your wife and work this through:
How willing are you to not do it on the basis of a might?
My mum died in childbirth - I might have done too (I don't)
My dad had renal failure - I might too (so far so good). Neither parent diabetic.
Both grandfathers died of cancer (so far so good)
A distant relative got hit by a bus - I kid you not!
Anyway you get the picture - it might happen and it might not...
How willing are you to not do it on the basis of a might?
My mum died in childbirth - I might have done too (I don't)
My dad had renal failure - I might too (so far so good). Neither parent diabetic.
Both grandfathers died of cancer (so far so good)
A distant relative got hit by a bus - I kid you not!
Anyway you get the picture - it might happen and it might not...