Not a drop of formula in my house. If you are determined to BF then you will make it work & work through problems. If formula is needed to top up then it will have been the result of issues that will be apparent over time and not an all of a sudden baby needs formula NOW. You'll have time to go out to buy it if you need it. If it was in the cupboard I think there would have been a couple of nights I 'd have been tempted to use it but that wouldn't have needed - it'd be out of convenience. Short of a medical condition - with the right support, most women can breastfeed and will not fail if their family is fully supportive and the determination to succeed is there xx