New mom- diarrhea in one month old?

He just had a blow out of green poop.. watery. I’m so worried because I just recovered from c diff from my delivery. Is this normal poop?? I’ve never seen him have a green poop. He is formula fed and we haven’t changed his formula. Normally his poops are yellow and pasty. Why this green now?? Help! I’m so worried he got c diff from me!