Poop help

My pediatrician is not in today and just called the office. I have a question for all breastfeeding mamas and supplementing mamas. My 10.5 week old poops once a day and skips a day sometimes. Her poop comes out green due to the formula and breastmilk according to doctor. The one day I gave her just breastmilk in the bottle next day she pooped a good mustard yellow. The next day no poop and after green again like military green and like a mayo spread. I’m a pumper and put her on my breast 2x a day. I have to supplement with formula since I’m an under supplier. She’s on Enfamil gentleease. Is this normal?