And of course this is biology, so timing depends on individuals. But 30 hours is probably a good estimate.
24 to 30 hours… experts disagree.
Plus, this is the point at which the single cell begins to divide, not the point at which it becomes diploid.
And the moment at which the cell becomes diploid is not the beginning of the process. The sperm entering the egg is.
At which step do you draw a line and say “OK, at this step we have conception.”
Choosing the moment at which the chromosomes if the egg and sperm complete their uniting is as arbitrary as picking the moment of birth, or some other arbitrary moment in the process.
When does the life process begin? Clearly when the sperm enters the egg and everything starts happening.
And we haven’t even talked about the implantation of the new cells on the uterus wall
Used to be pregnancy began at conception. When pro-life people started pointing out that the Pill’s secondary mechanism was to prevent implantation, suddenly, voilá!, implantation became the new time pregnancy began.
the fact that up to 80% of the fertilized cells never implant and die.
What is the import of this fact? I think that pretty much everyone is aware of the difference between a natural death and a homicide.
All these ideas are just semantic games some people (not necessarily you) play to justify keeping abortion legal. There is no other use for the time and energy spent on splitting hairs to the level of quarks.
Thus many Catholic hospitals have given “morning after” pills–although this has been very contentious.
Contentious only because our technology is imperfect. The reality is that there is giving the morning-after pill when it is known the victim is not yet pregnant in order to delay ovulation so that a pregnancy *
will not occur is morally sanctioned.
All I’m trying to do here is simply point out that it’s complicated, with multiple steps over a fairly long period of time.
There is one process, which begins at the entry of the sperm into the egg.
Each and every one of us went through this process at the beginning of our lives.
None of which was known in 1869.
So, are you arguing that abortion should be allowed in the period between the entry of the sperm into the egg and 25 to 30 hours later?