should my newborn be eating so much?!

Sydney • Mommy to Roxanne Everly Mayers, born Christmas Day 2016, 8lbs 2oz bundle of beauty. 💛 step mom to Ryko Yancy ❤❤
My pediatrician says that 2oz is recommended for my 5 day old baby but when I give her that much she gets fussy and very obviously wants more. She ends up eating 3-4oz every two or three hours. Am I overfeeding her and could it hurt her?