Saving edited jpgs to MAC desktop

When I edit a raw file and then change it to JPG and save it to the desktop I'm having issues when I drop it in the MAC Photo's app. After I import the file into the photos app I trash the file on my desktop but then when I attempt to view the image in PhotosI get a pop up that says the "original file is missing".  Should I be doing something different when editing/saving an image from Photoshop.  Keeping all of these "original files" on my desktop and in the Photos app are taking up memory on my MAC.