Pooping too much?

So for the past 5 days my LO has been pooping alot more than she use to. I want to stay she poop 4-6 times. I'm concerned because it all of a increased when we gave her a little bit of rice cereal 6 days ago. Is this normal? She is breastfed so her poop color is like dijon mustard but there have been a few dark greens ones. Just worried and looking for opinions to see if I need to call the pediatrician on monday