Nasal bones heal by fibrous union and doe not form callus formation. Fibrous union is takes longer to heal that arm bones fractures. For 6 months I would wear a guard to protect your nose. I now see for fracture noses related to basketball than hockey
Usually after rhinoplasty I tell patients to limit aerobic exercise for at least 3-4 weeks and then contact sports or heavy lifting for 6-8 weeks.