I think Bertrand asked a very interesting question - where does the pressure come from?
I felt huge pressure to BF. DS was EMCS and had blood sugar/body temp issues that necessitated a formula feed administered by the MW a few hours after he was born (at which I nearly had a breakdown) and then admission to the NICU, then SCBU. He was fed through a nose tube. I spent hours trying to express colostrum, then milk because he just wouldn't BF. I cried a lot, in hospital and at home, especially when I made the very difficult decision to go fully FF as expressing was too bloody hard 6 weeks later.
I'm trying to put my finger on why I felt this pressure and, let's be honest, elephant-sized load of guilt when I couldn't do it.
There was the NCT BF woman. We sat through 2 hours of basically a lecture on the benefits of BF. I remember her saying that in 30 years of her work, she'd never once met anyone who had a genuine medical reason for not BFing.
There were a fair few NHS leaflets on BFing but I didn't take much notice because I was planning to anyway. There were the looks from certain MWs on the postnatal ward when I was expressing instead of 'proper' BFing, then when I was asking for bottles of formula to top up my meagre supply of BM.
I think at least some of guilt came from having read all the studies and concluded that breast is definitely best, then not being able to do it, therefore 'failing' at early motherhood. I suppose in this sort of context, it's one of those first world problems.
I know now that I never failed, that a thriving, well-cared for baby is the goal. But I didn't know that then and it nearly floored me. And I did read some MN threads that made me feel worse, but I can't name names. I eventually learned to ignore it all and have a perfectly healthy, happy if dairy-intolerant nearly 2yo.
So it's all a bit nebulous, really, isn't it? My advice to any new mothers who ask is just to do what you need to do to make sure both mother and baby are thriving and happy. It's different for everyone.