Hello,Directly post op, your tight, swollen breast tissue will compress and displace the implants up and outward. As well, swollen pectoral muscles can further contribute to the high, boxy look of post op breasts with nipples too low on the breast mound. As swelling subsides the implants will drop & fluff. This can take between 2-6 months and involves volume moving from the upper pole into mid & lower breast. This will cause the nipples to appear to sit higher eventually. I recommend that you follow your Plastic Surgeon's post op advice. Let them know if you have any concerns and try to wait until closer to 6 months before evaluating your results,All the best