Is it a taboo?

Hi! Newbie nurse here.

Paano po kung wala pang 6 months sa work pero may prior commitment na po? Kasal po kasi ng kapatid ko, worst is 3 days sya (Preparation for Video Shoot/Wedding/3rd Day uwi since out of town sya), pero I'm trying na 2 days lang, uwi nalang nang mas maaga. Pwede na po kayang mag leave or bawal? At may effect po ba sya sa image? Tia