It is safe to undergo breast augmentation either before or after having children. Studies have shown that there is no significant change in the ability to breast feed after having had breast implants....The ducts that create the milk are right under the nipple and these are not messed with or gotten near to during breast augmentation. Typically we place implants under the muscle and there are so many layers between the implant and where your milk is created. If someone was planning on getting pregnant in the next year, I would suggest holding off on getting breast implants in order to go through the whole pregnancy and breast feeding phases. But if there are no immediate plans to get pregnant, I would say it is completely fine to get breast implants and continue with your normal life plans. When it comes to breast feeding....there is so much variety in women as far as do the breasts get larger and stay larger, do they sag afterwards, do they get bigger and then return to a "deflated" type appearance....no one can predictably guess what you will be like after breast feeding so it is better to just deal with whatever cosmetic concerns pop up at that time. As always, it is worth consulting with a board certified plastic surgeon in person to talk about your goals, plans for life, and the pros/cons of getting the procedure done now. Good luck on your journey!Ramsen Azizi M.D. Double Board Certified Plastic Surgeon Chicago - R.A.M. Plastic Surgery