How to Tell if my Nose is Broken?

You need to be seen by either an Otolaryngologist (ENT surgeon) or a Plastic surgeon. Your nose needs to be examined for bleeding in the septum and if the facture displaced the nose it may need to be placed back before it heals in its displaced position. Rather than guessing do yourself a favor and get yourself properly taken for. 

Altho you won't know unless you go to a doctor, it probably is broken.  Go to a Plastic Surgeon or Facial Plastic Surgeon.  The reason we want to see you early on is that if the nose and possibly septum are broken, they can be set in a relatively straight position and possibly avoid the need for future surgery.  A straight nose is easier to fix and a minor septal deviation easier than a major one.  In all liklihood the doctor will order an xray to confirm, but if the clinical exam is suspicious, you will probably need to have the fractures set.  The longer you wait the harder it is to do and after several weeks, you may have to wait several months for all the swelling to subside before fixing the deformity, also at a much greater cost.  Good Luck, Dr. Schuster from Boca Raton