I Fell On My Side Two Weeks Ago (rib Cage

I fell on my side two weeks ago (rib cage , back right) The pain in the back was worse and diminished . when I press on my ribs under my right breast it hurts. I am re- experiencing a pain in the back right and have had bouts with pneumonia in the past. Can a fall jolt something in your lungs to create a pneumonia? I have not had an x-ray to prove a fractured rib (just aspirin and an ace bandage)