sleep duration?!

Amina • Mom of a 3 year old lil boy and pregnant with a little princess 😘
My lo is 3 months and half, he sleeps at around 8, bug only for a cpl of hours... The real night starts at 11:30 when I feed him after a bath.. He started to sleep till 6 but since a week of so he wakes up every 3 hours... Still EBF,what am I doing wrong?