Sleep schedule question - am I doing this right

My daughter is 6 weeks old. During the day she's pretty alert and seems happy. But at night she sleeps in these weird 2-3 hour chunks and we're feeding on demand. I know newborns don't have real schedules yet but I'm wondering if I should be trying to establish something more regular. We're doing contact naps during the day which feels right but also means I can't get much done around the house. Is this normal or are we setting her up for bad habits later?