Religion is irrelevant to the topic, in this thread, and anywhere.
As presented in the opening post of this thread, any valid refutation with regard to when an entity begins to live must be scientific.
Only science is the obvious authority on when an entity begins to live. It's about scientific observation and criteria that is objectively applied and universally accepted.
It is not about religious doctrine that is factually unsupportable, often specious in its allusions, varies from religion to religion, is therefore divisive, and obviously doesn't solve anything, but only makes matters worse, as history does attest.
If you have no scientific presentation that directly refutes the opening post, then the matter is done.
I would think you of all people, Mare, would not want religious interference telling you, among other things such has who can get married and who can't, that you would be in danger of Hell fire for advocating murderous abortion. Then again, being the utilitarian moral relativist that you admittedly are, consistency of presentation is not one of your strong suits, and I suppose if you find one religion that says its okay to murder newly conceived people, you'll probably be happy, and, of course, choose that religion's perspective over the one that damns you to Hell fire for committing murderous abortion. 
Keep religion out of this topic where it has no rightful business.