A woman is the most fertile two weeks before the start of her next period. This is when she ovulates and is the ideal time for sperm and egg to meet to produce a pregnancy.
Usually a woman's most fertile time is fourteen days before the start of her period. But a woman is still fertile during her period, if the egg is still present in the body.
You are either trying to get pregnant or trying to be more cautious so you don't. Either way you will need to know the the time when you ovulate, which if you have a 28 day menstrual cycle, at day 14 is ovulation. Therefore, you would aim to have sex on days 13 through 16, since the egg survives a maximum of 48 hours.
You can find more information here: pregnancy.lovetoknow.com/wiki/When_is_a_....
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.