Anybody’s baby not pooping

My son is 6weeks 3 days and he hasn’t pooped in over 24 hours. He used to cluster feed for about a week and ate about 22-26 oz per day, but now he is about 18-22oz per day which has me worried. He hasn’t Lost weight but just a FTM here. He also sleeps so well at night and we put him down to sleep at 8, wakes up at 12:30-1, then sleeps 1:30-3am and then wakes up at 4:30-5 and sleeps till 7am. He usually is up after that. But with pumping I’m always up and don’t sleep. And then he doesn’t sleep in the day and doesn’t want to be put down during the day. Anybody have it rough like me?