Hi Titties2018, I am sorry to hear about the miscarriage. When you become pregnant, your breast will start developing and changing to produce breast milk. When you stop breastfeeding, your breast will cease to produce milk and will become smaller. You should wait until after your breasts have fully stopped making milk and stopped becoming smaller before considering breast augmentation. This change can take about 3 to 6 months to complete. The best time to have breast augmentation will depend on how much your body changes and the preference of your surgeon. It is best to visit a board certified plastic surgeon to discuss your options. Only after a thorough examination you will get more information and recommendations. Daniel Barrett, MD, MHA, MS Certified, American Board of Plastic Surgery Member, American Society of Plastic Surgery Member, American Society of Aesthetic Plastic Surgery