When did your EBF baby start sleeping longer at night regularly? (5+ hours)

My baby is almost 8 weeks old. She did have a few nights that she slept 5-7 hours which was great but now it’s just one to two 2.5-3 hour stretches then every hour she wants to eat after. She eats on demand through the day so not much of a schedule yet. (Also when should I have a more strict feeding schedule?) She usually naps 3 times a day. This is my first time exclusively breastfeeding so this is all new to me.