I don’t remember where I saw the post, but someone once made a very good point about how reproductive autonomy is not tied to one’s genetic relationship to the fetus.
If I, a woman, donate eggs for another woman, who then has them fertilized by her partner’s sperm, I have no say in whether or not she chooses to terminate that pregnancy later on after implantation. Yes, I would be that child’s biological mother, but it isn’t my body that will go through the process of pregnancy, and therefore my input would be irrelevant.
So far no dude I told this to has been able to justify why they thought they, as the father, should have a say in what their hypothetically-pregnant partner chooses to do.
Nature did not distribute the reproductive burden equally between men and women and our legislation on reproductive issues needs to take this into account.