Should you become pregnant following your operation then your existing breast tissue will be subjected to the normal hormonal influences of this period and therefore your breast will enlarge and the skin will stretch accordingly. Likewise, once the pregnancy and any associated breast feeding ceases, your breast tissue will then shrink down. Some women will have sagging or deflated breasts. It is impossible to predict to what degree these changes will occur; however, the breast implant volume will remain the same throughout these. Breast feeding is certainly possible when implant is placed behind the muscle and the implant is not inserted through the nipple-areolar complex. Whether placement of implant behind breast tissue (in front of the muscle) has bearing on breast feeding is still debatable. Prolonged breast feeding, however, will create possibility of stretch marks on the breasts and certainly accelerate breast droopiness (ptosis) which may or may not require surgical correction.