I'm eb at the moment but decided to express some milk as my boob was pretty full. I managed just under 30os (the first measurement on the bottle) my baby had the whole lot in one go. Is this way too much? He's still nursing now? I have no clue how much expressed milk I can give him in one sitting and not having much luck for guidance on Internet. My baby is 1 1/2 weeks old and does not stop nursing!