After Getting a Rhinoplasty when is It Safe to Get a Nose Piercing? Two Years?

 . . . there are potential problems including cartilage infection, loss of structural support, and bad scar formation (like ear pierce keloids). I've had to "fix" a few of these issues, so I mention them not to scare you, but to inform you that there are risks with everything. Thanks for asking! (BTW, you should ask your surgeon) Dr. Tholen

Unless the hardware placed through the piercing is exceptionally bulky or heavy -- and so long as you aren't sensitive to the material placed, 3 months should be an adequate amount of time to wait for a piercing.  Sooner than this might instigate more bleeding than usual since the healing is still in a relatively early stage and thus the blood supply is greater during this period.  2 years is more than enough time to wait.  Go for it.