I am a 30 FF normally but currently a 34H and I wholly recommend the Anita bra from Figleaves which is an underwired nursing bra. It gives great support and is comfortable enough to wear in bed. I wish I had found it the first time around.
I have found breastfeeding much easier second time around I think perhaps I knew what to expect this time, but also a friend recommended wet healing for cracked sore nipples which means never letting your nipples dry out or scab so putting lanisoh on all the time to ensure they stay moist. It makes the healing process much quicker and your nipples feel much less sore when feeding.