Girls, hi! Son is 2 months old. We have no schedule. That is, he wakes…

Girls, hi! Son is 2 months old. We have no schedule. That is, he wakes up, stays awake for about 2 hours and sleeps. He wakes up every 2-3 hours, eats, and falls asleep. In the night sleep after 10-11 pm goes away. Sometimes much later and it's hard to put him down. Is this normal or not? Thanks.