It is your life.
Only your decision matters.

But here are some reasons for going through:
Having a kid with no / aging / ailing father is just hard. Do you really need to put yourself and child through that hardship?

Having a kid wih a father that can't do much for it is also hard. Not going to teach Timmy how to ride the bike bc Daddy can't even walk.

I believe there are several birth defects that caused by the age of the genetic material provider. So the health or mental state of the child isn't actually ensured.
Can you provide the child everything it would need? Special needs part undersored.

Reason to keep it:
Human emotions
Human morality