I think its just that your stressing. Also when you think about something for to long your brain can do crazy things and make you think your pregnant. But to be safe I would go and get a test.
Alot of the tests now you can do even before you missed period but if you do go and get a test I would take it first thing in the morning because that'll give you the best results because sometimes you'll get a neg. Response during the day (because of your urine being to diluted) when you really are pregnant.
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.