Baby feeding less..?

Soo baby is 5 weeks old n started doing his night 2 days ago sleeping on average 5-6hrs a night. I noticed he doesn’t eat as often anymore. I breastfeed as well as pump. He spends less time at the boob and used to go 2hrs between feeds but now can go 4-5hrs between feeds. Is this normal? He’s a big baby and has been gaining more than the average so no issues there. I guess I’m worried?

He does have at least 6 wet diapers a day if not more for sure..