Infant poop concerns

Victoria

Hi second time mom here, my 5 week old just had a poop diaper and it looked odd, possibly bloody mucus ? Also looks like a tinge of grey? He is on enfamil formula the neuropro gentlease. Has any other moms experience this before and if so what was the reason?

He’s also had baby acne that flares up wondering if that has anything to do with it. Maybe some type of allergy ? See picture below