HELP BABY POOP TMI TMI TMI TMI TMI

Baby has been really cranky the last two days. She turned 4 months old yesterday. The first picture, when she first went it was really watery, like if I held the diaper up it would run down. The second picture was from today, she ate baby rice cereal for the first time last night. She doesn’t have a fever, just extremely cranky and really tired all day. Any ideas??