In some birth stories I've read, women had talked about it wearing off before delivery. In others, women have referred to a button they got to push when they needed more and it automatically went into their system so I imagine that wouldn't wear off if you could keep pressing the button. Or is it set up with a button but then they remove it before you push and then maybe it would have time to wear off. This is probably a stupid question...but could someone please explain this to me.
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