Or it's an effort to show that a fetus is not automatically a person from conception.

I think almost every reasonable person would agree that any fetus who can survive outside a mother is a person, and that personhood starts at some point before that viability test; I think there is a lot of room to discuss a question of personhood in the first few weeks of development.

My personal view is that personhood requires a mind, and here on our physical earth, a mind requires a brain with some level of development. My personal view is that level of development is not reached in the first trimester. You are perfectly free to disagree with me on this! I am not trying to unduly influence anyone's point of view. I cannot say you are wrong if you disagree!

I would like to gently point out that there are facts in this discussion, but there are also opinions, deeply held beliefs and analysis. Only the facts can be fact checked. The opinions, beliefs and analysis require some kind of framework for discussion.