Nurse3698

Help! I am looking for advise. I work in a unionized hospital where scheduling is based solely on a seniority basis. We put our schedules into the scheduling system on the computer and that is that. When I first started I needed off one weekend for a special family event but was told that was not doable because too many people above me did not schedule themselves for that weekend so I got put on so I had to work. Fast forward to present day and I finally have people under me in seniority so I can kind of get the schedule that I want. On the tentative schedule I was scheduled for a weekend in early December and was off the weekend after Christmas, which happened to be the day after Christmas. Now on the new final schedule that is posted the weekends that I was supposed to work in early December and the weekend after Christmas were swapped with someone with less seniority than me! She is now off the weekend after Christmas and I am scheduled to work!! She is also off Christmas Eve when I am scheduled to work. Seniority in the scheduling was definitely broke, which breaks union contract and hospital policy. I need advise on how I should go about this situation. Should I talk to my boss? Talk to the union? Thanks in advance!