The things you mention can also be a sign of cancer tumor growth... here is a link on how to tell if a dog is pregnant (a visit to the vet would be good too) helium.com/items/1673365-how-do-i-know-i... here is a link about preparing for pups and whelping gomestic.com/pets/helping-whelping.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.