If you need time off for a big life event you can talk to your instructors about who to email to try to work it out JW or the ladies in the office will try to help you if they can. SIMS are kind of backed up so you should have some flexible options for bidding something that can work for you. Talk to your classmates and explain the situation. If those senior to you are flexible and not turds they can help you out. You bid live in order in class from top to bottom. Best of luck.