Irregular feeding schedule

Ellie • Engaged to my soulmate💏and newly a SAHM to a 8 year old boy 👶🏽 4 year old girl and my newest baby girl born 1/25/18👶🏽👶🏽🎀🎀 💕

My 2 week old was doing really well with nursing every 2-3 hours. For the last 2 days she has been eating whenever she wants.. sometimes every 3 hours, sometimes there will only be a 45 minute gap.

Is this a normal schedule for a new breastfed baby?