I too was wondering about breastfeeding & sagging. I plan on breastfeeding, and DH was in agreeance b4, but since a friend had her baby a few months ago, whom had also planned on b/feeding, but her DH was trying to convince her otherwise, but she opted not to. Her DH kept saying that her breasts would sag after breastfeeding & that she wouldn't pass the 'pen' test:

hold your breast up, put a pen under it & let your breast go, the pen should drop to the floor if there is no sagging.

Does getting a properly/professionally fit maternity bra early on in the pregnany stop this?

I know it's a bit too soon to ask this, but was curious.