8 day old breastfed baby 💩

So my son is exclusively breastfed. I’ve been worried about if he’s been getting enough to eat since he hasn’t seen a dr since we left the hospital so I’m not sure if he is gaining or has lost weight. We have an appt set for Wednesday.

Anyways does this look like diarrhea or normal breast fed baby poo? He seems to get fussy and uncomfortable every time he goes.