You're in the bottom division in Switzerland, so nobody can be relegated. Also, if the bottom division of a country is entirely bot-filled, relegation doesn't happen. For example, the USA, has 5 divisions, but all the active teams are in D.IV or above, so nobody relegates out of D.IV.
If you could relegate, the two 8th place teams teams relegate. In addition, the 6th place team plays a best-of-3 series with the 7th place team in the opposite conference with the loser relegating.
Even though you can't relegate, you will still play the relegation playoff. The first two games will be scheduled for Tuesday and Saturday week, after the final league game is played on this coming Saturday. As the 7th place team, you will play away the first game, and at home for the 2nd. If a 3rd game is necessary it will be scheduled after the first two games have been played (on Tuesday April 29).
Since the games aren't scheduled that far in advance, you might want to make sure that your default lineup is set.