I've been married for about a year and a half, and its my second marriage. My wife is pregnant, and all is well. But, over the past year or so, I keep having thoughts in my head about her dying in a car crash, and how I would live my life without her if that were to happen. I'm sure that everyone has thoughts like that every now and then, but mine are every day, and it really brings me down when I think about it. Does this happen to anyone else, and why do you think it happens?