I wore the wrong set of Invisalign PLEASE HELP

[canucksfan14]

Hello, I change my invisalign every week. This week I was supposed to wear tray #25 and I just noticed that this whole week i was wearing tray 27. I have one more day until i change to my new tray and I can't call the dentist because they are closed due to the long weekend. I just tried on tray 25 to see if it still fits and it does, i felt pressure still. So when I go to change them tomorrow do i wear tray 25 or 28??

[kittenpoint]

Honestly I would call when you can just to be sure, but if you can't call I would probably continue to wear tray 27 until it was the set time for me to switch to tray 28.