For ebf moms

So my little one is a little over a month old and is constantly on the boob. I've noticed that he empties both but want more with in a half an hour to an hour. I am making the right amount but feel like he isn't getting enough. Should I be concerned and take intervention. He has gained weight, poops great and pees like no other baby I've known. I just feel like there empty and not filing up much.