Bear with me here. Terminology is important.
How Conception Works :
The First step is getting the egg fertilized by the sperm. This happens quite a lot. It takes two to four days from the moment of fertilization for the egg to get around to implanting into the uterus. Up to 90% of fertilized eggs don't make it this far. So, in an i26 world, more than half of all "persons" die a natural death before their mother is even pregnant.(source, source)
How many fertilized eggs complete the task of implantation?
A) 85 – 95% B) 60 – 70% C) 30 – 40% D) 10 – 20%
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The Next step is implantation.
Approximately one week after fertilization, the blastocyst embeds itself in the thickened wall of the uterus, a process called implantation, and pregnancy is established.(source)So, why label a 'person' well before pregnancy occurs? The only explanation is to be able to target IVF, Birth Control pills, Emergency Contraception and other Family Planning methods.