Abortions

Regarding the relationship between the halakhic position on abortion and the moral position:
Is it possible that there is a difference in positions that stems from the fact that the law has religious and not moral considerations (or at least not only moral ones)… similar to the Maharal's words regarding the laws of the Sabbath of loss…
Or in this case, do they both stem from the same question – when does life begin… a determination that will have moral and religious implications…
Or in other words, for a person who has a position that differs from the halakhah on this issue…. Is it possible that this is his moral position, which parallels halakhic determinations (easier to reconcile)… Or is it the same question, and the fact that he will accept the halakhic position is merely due to his acceptance of the Talmud, even though his position has religious implications that contradict this determination…