Hi to all the new people! And so much good info here - must take notes.
I'm planning on BF, but still so anxious about it - on the one hand, anxious that it won't work, and on the other, that it will work but baby will then refuse expressed milk from a bottle and I'll have to EBF, which I think I'd find difficult to cope with. I have no issue whatsoever with people breastfeeding in public, but I think the prospect of having to do so myself would be enough to keep me at home, by myself. For at least six months. Yeah, I know I've got some issues there. 
But the doula we found is one who really knows her stuff when it comes to breastfeeding, so hopefully she can help - we're also doing an antenatal session to help me learn to express, and hopefully collect some colostrum to have some "in the bank". I'm waiting to get a pump until I'm sure I can do it, though. Does anyone know if there's any official guidance about second-hand pumps, btw? They're a lot more affordable, so I'm hoping they're fine if they've been sterilised.
(I did get the steriliser, though - £1 for a Phillips Avent thingy that needed to be decalcified!
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Oh, and I'm so with you ladies on the rapid expansion issues. And I swear, I JUST got new bras. Stupid ribs. 