Simple answer, you never run out completely. You're constantly making more, so there's always some there. And if bub is peeing and pooing enough, and growing nicely, then you are making enough.

And you said this happened last night - does that mean that she was ok the night before? So one unsettled evening is not an indication of not enough milk! I'm not trying to belittle you or your concern, just trying to give you some perspective. Many, many mums worry that their supply is inadequate, and it nearly always isn't true. There are heaps of articles on this - on bellybelly, on the aba website. Have a read through and reassure yourself.

How much you can express is not a good indication of how much milk you are producing, or how much bub can get. And believe me, giving formula is not an automatic pass to a settled baby! All babies are different and your elder child may have been just as settled if he had been BF, and this one may be just as unsettled on formula.

Please make sure that your DH knows all these things too, and reads the information, so that he can start being supportive of your BFing, instead of undermining your bfing.

To help yourself to stay hydrated, try putting a large bottle of water (like an empty 2L cordial bottle, for example) in reach of your favourite feeding chair, and make sure its empty by the end of the day. If your DH wants to be more supportive, you could ask him to make sure that the bottle is there and ready for you first thing every morning. Helping me to stay hydrated was one thing my DH did for ages, which I found really helpful for the first 5 months or so.

I hope you have a super-watery day today, and a more settled evening.