Hi Sylvie, just checked with the team and this is currently not possible.
Here’s a feature request you can vote on: Automated Email Campaigns .
An automation can be set so there’s a timed delay after a trigger. You can get additional information on the article linked below (step 4 to be more specific).
https://support.wix.com/en/article/creating-a-new-automation
Hope this helps! 