This bill mandates the Secretary of Defense to establish a five-year pilot program within 180 days of the Act's enactment. The program's core purpose is to treat pregnancy as a qualifying event for eligible beneficiaries to enroll in TRICARE Select, a health care plan for military personnel and their families. The Secretary must provide an initial briefing to appropriate congressional committees within one year of enactment and then submit annual reports for four subsequent years. These reports will detail the number of covered enrollment changes, disaggregated by month and the specific reason for the change, including whether it was due to pregnancy or other events like separation from or return to active duty.