The pregnancy and the cloning both are human actions. The death of the traditional fetus through miscarriage and of the clone are both unfortunate, unintentional, natural events. In other words, we have three categories of concepts.
Consistency requires that the same principle be applied to the conceptions of clones.
To hold two different standards for equivalent actions is to commit hypocracy. If rules are made against this type of activity then those rules ought to be consistent.