Pooping less when starting solids?

My 6 month old has been having purees once a day at dinner time for over a week now.. he’s been breastfeeding just as much as before but he’s only had 2 or 3 poops this whole week, when before he had 2 or 3 a DAY. I’ve only given him peas and sweet potatoes. I’m not noticing any signs of constipation.. is this normal?