God knew you before you even entered the womb. Does this not mean that the soul isn't created upon conception? We know by reason that the soul is intrinsically linked to the brain, so is the soul even there when the brain isn't?

Is it murder to prevent a conception? But what about immediately after conception? Cells have started dividing, but there isn't a brain or consciousness. Is stopping that murder? What if the embryo fails to implant?

(This isn't a criticism. You can tell that I disagree, but I'm mostly interested in your personal belief system.)