Don't believe a word she says and use protection each and every time. What she's telling you doesn't make any sense. Just because she never got pregnant from her ex in two years only says that something may have been wrong with him, not her.
Unless she has some sort of medical documentation to prove that she can't get pregnant, DON'T BELIEVE 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.