Can I backup data from my Iphone 6 but still keep my current data?

I accidentally deleted a few pictures from my iphone. I have those pictures saved in my old backup 1 month ago on my computer. Of course I don't want to backup because I would then lose my data for the past month. My question is, can I still keep my current data on my phone, but get a few pictures from my old backup?

Check your phone's Photos app or iCloud.com Photos. Switch to Album view and look in the Recently Deleted album. If you haven't manually emptied the trash they may still be there.