Breasts with implants looks saggy after breastfeeding. (photos)

You will need to wait about 6 months after breast feeding to see what your final look will be. Some women never go back to their original size and shape. You do show some sagging in your before photo. I would suggest meeting with a board certified plastic surgeon 6 months after you stop breast feeding and discuss all your concerns and your options.

The best thing you can do at this point is simply support them.  There is a very good chance after you are done breast feeding that a breast lift will be necessary to lift the breasts back onto the implant.  You may want to consider this when done with kids, however.  The breasts do not typically snap back to their pre-pregnancy look on their own. 

Thank you for reaching out and posting photos! There is not really anything you can do. With the fluctuation in size from being pregnant and breastfeeding, it is very common and normal for your breasts to change and not return to what they were before. I would suggest you enjoy breastfeeding and when you are done, see your plastic surgeon about what options you have! Best of luck! Dr. Kim