Poop frequency

Hi mammas! I have a 3month old and today he’s pooped 3 times and idk if I should be worried or not. For context: ever since he was born he was pooping between 6 to 8 times a day up until he was around 12 weeks old. Suddenly and out of nowhere he started pooping every day and a half or two days, still passing gas per usual and never went more than 2 days without pooping. This lasted around 2 weeks. Today he will turn 14 weeks and 3 months old and in the past 24 hours he has already pooped 3 times. Is this okay? How would I know if it’s diarrhea or if I should be concerned? I am exclusively breastfeeding.