If I decide not to breast feed, will that do anything to my breast implants?

It should not effect it.

A pregnancy should not effect your implants. We, however, cannot say that about the breasts themselves. Your obstetrician can better help explain the changes your body would go through with a pregnancy. In general, there is an enlargement of the breasts in preparation for breast feeding, If you do not attempt to breast feed, then there is no stimulation to start to produce milk. You still will produce a small amount at first which is normal called colostrum, and with time the breast tissue will "involute" or revert back to its pre-pregnancy weight depending on how much weight you gained and then loss afterwards.