I fell down and I think I may have a broken nose?

Hello Doctor.

While crossing the street, I tripped on the sidewalk and fell down. I fell on my face. All is ok except for my nose. There is a bit of swelling so I believe I may have a broken nose. My question is the following: Should I wait for the swelling to subside to see if my nose is broken or should I get an x-ray of my nose right away.