Celebrity Cruise Line cannot accept guests who will be more than 23 weeks pregnant at any time during the cruise . Any guest who will be 23 weeks or more pregnant during NurseCon at Sea may transfer their reservation to another participant up to 45 days before the cruise. Fees may apply.
https://www.celebritycruises.com/special-needs/medical-needs#:~:text=Pregnancy,aware%20of%20our%20pregnancy%20policy.
* Celebrity Cruise Line does not accept physician notes