Except for the life of the mother, I disagree. In the latter cases, you are placing some other principle above the right to life, which is the primary right.
That's why the life-of-the-mother case is the only legitimate exception, because you're trading life for life.
What is legitimate about that?
This case is simply refusing to handle the risks that come with living as a woman by commiting murder. If a woman cannot handle the thought that she might run some infinitessimally small risk of dying by becoming pregnant, let her remain chaste.
Life is dangerous. Some things more than others. Avoiding danger does not justify murder.