chalky gray baby poop

my 9 month old has been eating more baby foods like purée, puffs, yogurt, yogurt melts, and drinking juices. he is typically on gerber soothe, but yesterday he had one 6oz bottle of similac sensitive. he hadn’t pooped all day, and around 8 pm he pooped (didn’t have any trouble) and it was a chalky gray color and very dry. he is also teething and 2 teeth just broke through last week. all i’ve given him for it is children’s tylenol but that was 2 or 3 days ago.

this is the first poop he’s had like this also. he doesn’t act any different. is this normal or should i be concerned?