2 week old sleeping too long?

Sorry I’m a ftm and kinda losing my mind a little bit.

The day my son hit 2 weeks, he suddenly starting sleeping MUCH longer. He does have longer wake periods now, but he stays asleep for 5+ hours unless I wake him up.

My pediatrician said that I shouldn’t wake him up, but it’s freaking me out some since it’s such a huge change. He was sleeping 2-3 hours before and it seems like it just changed overnight. He is formula fed and I know they can sleep longer on formula, but I feel like it’s too much??

He is also a lot hungrier and I’m not sure if that’s caused by him sleeping longer or if he’s sleeping longer because he’s eating more. He went from 2 oz to 3 oz seemingly overnight.