Ay mama, pumping every hour is super intense, honestly most of us don't do that kasi sobrang mahirap maintindihan ang pattern! Usually what my mum friends and I noticed is na pumping output varies a lot depending on supply, baby's latch, at kung gaano ka-frequent nag-feed, could be 1-2 oz per session or more, pero it's really different for everyone. Since you're starting out, best talaga to check with your OB or a lactation consultant kasi they can assess your actual supply and give you a plan na realistic for your body, hindi lang guesswork!