I do not believe that you or I have the right to take a life unless that life is directly threatening your life.
That makes sense, and is indeed consistent. Where we disagree, and I guess this is not something that can easily be argued one way or another, is that a fetus is a life. If you don't mind me asking some further questions to react further to your position, could you tell me:
I can understand if a woman somehow finds herself carrying a fetus and finds it inconvenient to her life for whatever reason and does not want it. I have a fundamental and moral issue with treating that like an inanimate object without finding alternatives. A solution that would satisfy all would be to have the ability to remove an unwanted fetus, place it in some special incubation chamber until full term. Unfortunately that does not yet exist.