first of all, a huge congratulations on the birth of Ella!

When Ben was born, i fed on demand... And that would mean Ben could want fed at any given time, 2 hours, 3 hours. And then all of a sudden I noticed he "fell" into his own pattern at around 5 -6 weeks. Now, at almost 3 months he feeds every 4 to 5 hours, naps a few times a day and sleeps through the night. Your right, every baby is different. My experience found that Ben created his own routine, Im sure Ella will do the same. Good luck with it all!