The morning after pill has two probable effects - either it prevents conception (fertilization of a ripe egg), or it prevents implantation of a fertilized egg.
I doubt very much that "most Christians" think either one is murder.
I doubt very much that "most Christians" think either one is murder.
Most Christians believe life begins at conception. Thus preventing implantation of a fertilized egg would be murder.
There is also concern about the health effects on the child, if it manages to implant anyway of exposure to such a high dose of hormones.