Background images not showing up

I recently started blender and after watching many tutorials and playing with the program I figured its time to try and make something. I would like to model a human, and I have a friend who was willing to be a model for me, so I wanted to use the photos I took as background photos. I went the menu opened by clicking “n” and checked off the “background photos” box, added the photo I wanted, set it to all views, and adjusted my 3D view to front but the image didn’t show up. I’m not sure what to do here, as I’ve cycled through the views (top, left, right…) and the image never shows up on any of them. I could really use some help. Thank you in advance.