Do I need to pump in the middle of the night?

Sa

So as the title says, my 3 month old has started sleeping 9 hour stretches at night! while I am happy about this I'm also worried it's going to affect my milk supply, I don't have a huge supply to begin with, just enough for her and can't pump extra. So I'm wondering do I need to get up and pump to maintain supply or can I sleep? thank you in advance!

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