Rights impose duties on third parties, privileges do not.
Abortion, especially elective abortion of healthy babies in healthy mothers, is not a right. It is an illicit privilege granted by an act of law. No one has a duty to enable or act to cause an elective abortion at the request of a woman.
It is an “illicit” privilege, since the right not to be killed is an inalienable right. Each of us in society has a duty imposed by that right to prevent its infringement.
Edited 1/27/16 to clean up grammar and add links. BBN