
So sorry about your game Angela! For reasons like this, I always save a backup of my game while the husband and wife are still at a good age for children.
To learn how to do this, take a look at the topic here:
Backing up and recovering savegame filesAlso, sometimes couples will actually need baby boost to have children.. the only way to find this out is to get a doctor consultation on both the man and woman. If you were using baby boost anyway, I guess it just couldn't have been helped.

So sorry for your loss! I do hope you decide to start a new family.