Hungry baby

So my three week old seems to be eating a bunch. Every three hours she eats except at night she sleeps anywhere between 5-6 hours at a time. For that obviously I’m grateful 😂😂. She has always ate more than a newborn she was at 20 mls 3 days after she was born. Then she goes up an ounce a week basically. So as of this week she is up to almost 4 ounces until she seems happy and content. She only cries if her diaper is dirty or she’s hungry. Does anyone else’s newborns eat this much or did I just birth a chunk? 😂😂😂