Note that in case your tutorials are running in week 1 (unlikely, but check your timetable), that tutorials generally require 80% attendance over the course of the semester, so its fine to miss one or two, but be careful about missing more than 2 as you might fall below the 80% line and this can lead to an absent fail if you don't have supporting documentation such as a doctors certificate or something similar for missing them. If you do fall into this situation, talk to your tutor as soon as possible so you can work out a solution (some tutors/lectures are pretty lax about attendance, but some are very stringent).