I understand why you cant forgive and forget. To be honest with you I don't think he'll ever change. Sorry :( my honest opinion.
First of all, congrats on the pregnancy. It sounds like a very stressful situation to be in especially now that you're pregnant. I know it's hard because you always want to work things out and you hope for that perfect family but you have to do what's best for you and your baby.
You say you're the one chasing him but what are you getting out of that? As hard as it may be, sometimes it's better to go at it alone than to be stuck with someone that just stresses you out. Your baby should be your priority right now, not him.
There is no right answer as only you can decide what's best for you but you can't base your happiness on anyone else because the only person you have control over is yourself. Think about the kind of environment you want to bring your baby into, what your goals are for you and your baby. If baby daddy wants to get on board with the program, awesome but if not, you have to get there regardless.
Best of luck.
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.