I know this doesn't really have anything to do with anything, but I just want to jump in here for a minute. For a lot of reasons, this is also an extremely personal topic for me. As you probably know, I'm very pro-choice.
I have a 22 month old who is the absolute light of my life, and I also would love to have another baby someday. However, I can tell you right now, witout any hesitation, that if I got pregnant and my doctor told me that my life was in very serious danger if I continued the pregnancy, or even that it might be or likely would be, I would be on the phone scheduling my abortion that afternoon. There is no way I would risk leaving Paul without a mother, risk not seeing him grow up, seeing what kind of person he becomes, etc. And, yes, I know that any pregnancy is a risk to some degree - but in a normal situation the risks are pretty minimal. If I believed that the risk of my death was great, there wouldn't even be a decision to be made. I hope I never find myself in that situation, but if I did, I'd do exactly what Jenny is doing.
I'm sorry your in this situation - and I'm sorry you have to defend your position. I also admire your ability to do so without becoming frustrated and hostile.