i leaked from month 4 in my first pregnancy. by month 9, it was terribly humiliating. i'm a busty girl to start with, but i got up to a ridiculously large size, and not only that, they would soak through about anything. then after birth, the horror began. but it was b/c my son had to stay in the hospital and they make me pump every 3-4 hours for 15 minutes. this might be nice for some women to establish supply, but basically i established enough of a supply to have fed about 3 normal babies, and probably the entire NICU. most of which were being formula fed.
those breasts were criminally painful, huge, and didn't get down to THEIR normal size for almost 6 months. my sister made baywatch jokes.
okay- that's the bad part.
Good part- i never leaked after my son was born. oh wait, never outside of an orgasm, that always let some down. but i didn't need nursing pads, and with each subsequent pregnancy and child, never leaked or had any issues. they do get a bit engorged after birth, but after 3 months, they shrink again and i'm back in my pregnancy bras. that said, i have bras in all sizes. and i just rotate up and down according to pregnancy/lactation demands. by now, it's saves me time, and i don't wear them long enough to wear them out.
during pregnancy, i bought the bras i needed to wear clothes comfortably. usually TJ Maxx, or penney's, and almost never nursing bras as they just weren't comfortable or supportive enough. then, i invested in my one gargantuan nursing bra, and otherwise use soft sleep bras. i wear them out and stain them anyway, so getting something 'nice' is not high priority, but getting something that holds them well (they're pretty heavy and achy when the milk arrives) has been huge for helping me feel human again after that fun experience of 3rd trimester+ birth. and having something comfortable during pregnancy is a priority for me. i want to buy an organic cotton bra from the Decent Exposures, but have an issue buying something i can't try on. hmmm- now that i'm typing this, i think i should just order one, i'll use it!
i think the smaller busted ladies have a little more fun with this! anything below a DDD is nice and comfortable for me, and needs less support, but when you cross into the DDD/G/H realms, (or I or J), it stops being fun and becomes a bit of a nuisance!