The way I think about it is if I had a twin brother and he was dying and urgently needed a liver or a kidney and I could save his life by donating to him but it would clearly have lifelong consequences to me there would be no question that he had no right to my organs.
To me it's a question of personhood. Until the fetus can survive on its own the mother's health and thus choice must take precedence. Furthermore, we as a society (in the US) are not even taking care of the children already living. If someday every kid in the Us is fed, educated and loved maybe we'll have discovered a safe and easy way to remove an unwanted fetus, grow it in an artificial womb find them a loving and supportive home and this whole controversy will go away.
https://www.nokidhungry.org/who-we-are/hunger-facts
Anyways this is clearly an argument that will change very few minds and that's fine.