Baby's poop (picture included)

Claudia
So my baby has pooped the way it looks In the picture a couple times. It's yellow and seedy but I've noticed a mucus like string. It recently started like a day or two ago. Nothing else is showing on my baby, basically what I mean is no symptoms like a fever or him crying out of the normal that he usually does. I'm a little worried cuz I've heard sometimes that can be an infection or something like that. Does anyone know or has experienced a similar thing?