You must re-apply to the semester you intend to start. You can use the re-application feature in NursingCAS to move your application to a future semester.
Note that not all information is transferred in the re-application feature. Information such as coursework, official test scores, attached transcripts, etc., can be copied into the new application.  Letters of reference, essays, payments, and program-specific information cannot be copied into the new application.
You can read about the re-application in the NursingCAS Help center.