Arguments about the personhood of a fetus or zygote are relevant until the pregnancy reaches the third trimester. It's only when there is a real possibility of right-to-life consciousness that we need to rely on bodily autonomy arguments. Over 93% of all abortions are first trimester, and almost 99% are performed before the 3rd trimester., so both arguments are important. I cover both kinds of arguments in this series of papers. https://teedrockwell.medium.com/abortion-involves-all-the-unanswerable-questions-in-philosophy-e7eb985102f2