It is possible, but as likely as a younger dog getting pregnant. It's not healthy, if she is. You should really see a vet.
You don't want a 15 year old dog to get pregnant or have pups. It will be quite detrimental to her health. If she is pregnant, I would urge you to end the pregnancy; it may be hard, but having the pups may kill her.
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.