I've just given my 3 week old DD a 40 ml top up of formula as she had been feeding for four hours and there was no milk left in my breasts (tried to hand express to check). Panicked that she was crying and I was starving her and sent DH out at midnight to get some formula.
She drank the formula but now I have more milk so I am thinking actually my supply is OK and she was just cluster feeding because of a growth spurt.
I have now scared myself googling that as soon as you introduce anything other than breastmilk you change the gut flora and destroy some of the immunities gained from breastfeeding.
Have I ruined things? Can I get the benefits of EBF back? Or once you have given formula does this mean you have permanently ruined the benefits of EBF?
Reading this back I know I sound a bit deranged but please humour me - I am very sleep-deprived and a real worrier about doing the best for this baby.