Personally, I'm against abortion.
Reading this post has actually given me a moral dilemma, I'm stumped as to what I would do in this situation.
I can understand your predicament, it must be very difficult.
Not specifically picking on you Sam, but there is no dilemma to be had. An ectopic pregnancy is essentially the scenario when the fertilised embryo attaches itself to the fallopian tube and starts to grow there, rather than the uterus. Quite how and why it does that is unknown, but that is the basic and most common scenario. If undiagnosed and left untreated, it will cause severe internal bleeding and is potentially fatal for the mother. Its not a viable pregnancy anyway, so IMO (and that of many experts), termination of such a pregnancy is not an abortion.
I know you weren't after sympathy BR, but you have mine. My wife and I have experienced two ourselves, one of which required my wife to have emergency surgery and an overnight hospital stay. Not a pleasant experience. Good luck, and I hope all works out for you both.