hi, ive not read the whole thread, baby lying on floor chewing his mat and screaching like a cat at the mo!! but i would advise you to get in touch with a breast feeding counsellor in person before your birth, contact nct or la leche league, or ask a hv (they may know something?!) and get their phone number beforehand.
You cant and dont need to toughen up your nipples as a good latch and position should give you pain free feeding.
However, both of my babies gave me very sore nipples for the first 2 months, the latter acutally cracked my nipp until it bled. ds1 had tounge tie, but even after that was sorted and postioning improved it still hurt. ds2 hurt also, positing was again improved and every type of help avaliable was provided, that included a very experienced and fantastic breast feeding counsellor and latch and position was fine.
This continued for about 2 months with both children. I continued as i was determined to get to at least 6 months. After around 2 months i suddenly realised that it didnt hurt anymore and it was relaxed and comfortable. ds1 fed until he self weaned at 10 months and ds2 is fully breat fed still at 5 months.
I am a fully trained breast feeding peer supporter and i know that they teach you that feeding should be pain free if correctly positioned and latched on, but the more people i speak to it appears that for some people it does just hurt for a while, but all of the people that i have spoken to that say this have also gone on to feed their babies happily, comfortably and pain free for at least a year.
But i feel that the best thing is to have a number of someone you can phone and say, help this hurts, or can you come and check my postioning. Also your local breastfeeding group should be able to give you a small sample of lansinhol, ahich is good for a few applications if you need it.