Whether they retain their new size and shape or return to their previous state depends on several factors, including overall weight gain during pregnancy and whether you breastfed. They may swell considerably due to hormone changes or to prepare for lactation. If you become pregnant, your breasts will go through a number of changes. Your bust size should stabilize as you settle into your adult weight. Your skin will stretch to compensate for your growing breasts. Your breasts may continue to change in size and shape throughout your teens and early 20s.īreast tissue contains fat, which means they’ll grow as your overall body weight increases. Your breasts may even continue to fluctuate in size throughout your monthly cycle. Your bust size may change many times throughout your life.įor example, many people find that their breasts increase in size before or during menstruation.
