Hi. The safest thing is to wait and get the nipple repierced after a few months, to minimise the chance of infection. When you do get the piercing done then you should use an antiseptic a few times a day on the area until it heals.
I would discuss this with your surgeon. I am not inclined to recommend any piercing this soon after surgery. Any infection that might occur, and there is a risk, could spread to the implants and result in a mess, involving removing the implants.
Although there is no clearly defined safe time, I would wait 3 months.
All the best.
It is certainly possible to repierce your nipple after breast augmentation. An argument to give time until your breast augmentation is completely healed first is that piercings can sometimes get infected. You do not want an infection while your breast augmentation is healing.