Mine stay the same before pregnancy, during pregnancy, breastfeeding and once I am done...
I breast feed my second son for about 4 months n when i got done with breastfeeding my boobs sag n the nipple never went back to normal!
I nursed my son for 15 months and my stayed larger afterwards.
Lol my mum always told us that her boobs got bigger after breastfeeding, so here I was thinking there is hope for me (I'm quite flat). I only found out this year that she got a boob job after having my brother... I was too little to notice her boobs changed and she never told us! She still doesn't know that I know :P
Mine never changed, except for when I'm full of milk, they get huge but after a feed/pump they are back to normal
Mine stayed the same with.my first two and after baby, its like instand implants! Which us nice, cause im not naturally blessed. Lol