Could someone run me through the aftercare of getting your nipples pierced?

Marked as NSFW just in case! Also, I don't have mine done - I'm just thinking about it.

Just the title really. I've only ever had my ears done, so nipples feel like a drastic change.

Can I wear a bra after getting pierced? Will tight clothes bother me? Does it matter if my breasts sag? Is certain nipple anatomy(?) required?

Thanks for any answers. I currently cannot afford to get them done, but I'm wanting to add it to my list of piercings to potentially do, and want some knowledge on what happens after it's done.