9 week old, exclusively pumping/breastfeeding, has a weird unpredictable eating schedule out of nowhere

Look how random her eating is. I don't know what to do, if anything. It used to be so spot on consistent: 2oz every 1.5-2 hours. But for almost two weeks its so weird! I never know how much to have ready. I'm glad she's eating at least. I just don't get what happened to her schedule 😑 Any tips? Today is the first time I started tracking times and ounces. She's gaining weight fine and looks great at her appointments. Her most recent appointment was last Tuesday

6:40am - (2oz)

8:46am - (1.5oz)

11:47am - (3.5oz)

2:15pm - (1oz)