A dodge, but not an answer. Freedom means different things to different people. I am not fully free unless I control my body and determine if I want to bring another life into the world. And it isn't arbitrary, although the exact number of weeks to viability have changed slightly over time. The vast majority of abortions are done in the first trimester when there is absolute physical dependence on the mother. There is no way to separate the child's body from the mother's where the child survives. And the child is a part of the mother, not separate. A 'chance' of freedom justifies the war dead but a 'chance' of a better life is not allowed, in your world, for women.
As I expected, you once again trivialize the impact of pregnancy and giving birth to a woman. To you it is just a minor, temporary inconvenience. This is where no man and no woman who has not given birth nor been pregnant can possibly grasp this. Some men can have empathy but that is as far as it goes. And there is no birth control method short of abstinence that is 100% effective and most healthy adults are not going to accept a sexless life.
We have had a long standing rule that if either my husband or I are incapacitated and will be a parasite to the family, if we are a net negative, have lost our minds, or are on machines, then the other or adult children must find a way to end it. We are far more humane with our pets than with each other. We cannot set an arbitrary age of 70 as many are fully functioning and contributing at that age. Also, an adult is not fully dependent physically, mentally, and literally sucking life nutrients from another physical body. So your analogy fails miserable. I fully support physician assisted suicide and dying with dignity. For example, no human should be forced to live through cancer so severe that their bones break when they are turned, in endless pain and agony. If I degrade to a point where I can no longer make these decisions for myself, then power of attorney is given to a family member to make them.