Help!!!! How do I recover a deleted portfolio?

Having a bit of panic attack...  So I accidentally deleted portfolio content pages (the pages that open when you click on the main portfolio page categories.)  As it turns out, deleting the portfolio main page category choices, deletes all of it.  I immediately looked in the trash bin and portfolio is not there! 😩  I'm thinking that a portfolio doesn't get saved when you delete it?, and praying I'm wrong!!! 

The image below shows where I accidentally deleted the portfolio pages. Then I added the 3 pages back, but the pages that used to get linked to from these 3 categories (the actual portfolio contents) are nowhere to be found.  PLEASE tell me I don't have to recreate those pages.

Here's the link to the site: https://ellipse-tangerine-yx36.squarespace.com/config/pages/63f4f8dec9a2bc2a52a3df5c

Uggghhh!!!  I was afraid of that. I guess I was in too much of a rush to notice the warning message. Oh well, back to the drawing board. Haste makes waste as they say.  Thanks for the quick response Paul.