All those sitcom jokes about growing breasts during pregnancy are infact true. Your breasts can grow upto 25% larger during pregnancy due to hormonal changes and as your body prepares to produce milk for the new baby.
Even post pregnancy, breast size will keep fluctuating through lactation and until menopause, again triggered by milk production, hormonal changes and fat component in your breasts.
No matter what stage of your woman-hood you are at, “Supported breasts are best”. Improper support can lead to sagging breasts, discomfort during physical activity and back pain as well as posture issues.
Check out this article from Shape magazine with some useful advice on how you can support your breasts and keep them perky.
https://www.shape.com/lifestyle/mind-and-body/breast-changes-during-pregnancy#