your rear because you don't have a leg to stand on from a scientific point of view, as noted in the posts you complain about, but can't refute... where all of the medical textbooks & the top scientific experts in embryology from around the world said unanimously & unequivocally that at conception a human being comes into existence.
If you want to look at the process in more detail (if you have an open mind and are actually willing to look for the truth) see Dianne N. Irving, M.A., Ph.D.'s article:
When do human beings (normally) begin?
"scientific" myths and scientific facts
https://lifeissues.net/writers/irv/irv_01lifebegin1.html