Fetus is a developmental stage defined by science. A fetus can be a chicken fetus, an elephant fetus or a human fetus. It is measured by an expectation of growth, the same way we measure development after birth. It is not a scientific category of being.
It is alive and science places it in the category human. It is a human life. It lives, it dies. When a human fetus is aborted, a human life is killed on purpose. Its a matter of science, not just words. We give women the right to kill a human life that they created. Keep the right but if you have to twist the meaning of human life to sleep at night, maybe something is wrong here.