Piercing should be fine just wait a few weeks after the surgery at least but otherwise should be fine. Some surgeons may also provide the piercing for you under a more sterile process as long as you provide the rings. I know that sounds strange but we have that request all the time from our patients as they are trying to do everything to protect the implants. I would check with your Plastic Surgeon.
You should discuss this with your PS. You can do anything you want but you are exposing yourself to the risk of infection (and possible implant loss).