I remember when I was a young teenager and I was first thinking about the abortion issue. At first, I thought the "pro-life" side had a point because the embryo and the fetus would naturally grow into a full person if left alone (unless the fetus was naturally aborted, which isn't typical for everyone). So the embryo isn't yet a person, but it will be, so it should be left alone to try to achieve its natural purpose, as it were.

But then one day it just clicked for me that if you abort the embryo/fetus at that early stage, long before it's become a person, it's not as if the baby from the future will come back to haunt the mother. That would all be in the mother's imagination, so the continuity between the embryo and the baby it will become is irrelevant if the embryo or the fetus is aborted before the relevant stages of development occur.