Lung transplant and breast augmentation
Best wishes to you on your upcoming surgery.
You will be getting a live-saving transplant, and will be on anti-rejection drugs indefinitely. These suppress your immune system to prevent rejection of the transplanted lungs, but they also suppress some of you ability to fight off infection.
Although breast implant infections are uncommon, your risk would be higher than normal, and the consequences should you get one might well be catastrophic.
Concentrate on recovery...