Eating alot?

Heather
So my little guy is 6 weeks old and the last few days he has been eating alot. I give him 5 oz at wake up and then we play a little and then he starts to fuss like he wants more to eat so I will get him 2 or 3 oz and he falls back to sleep for a few hours and then we start the process over. I'm wondering if that's normal or if he would be eating to much that way. Any advice would be great. Thank you much ladies!