As above cool boiled water can help with constipation think there’s a certain amount they can have though so be mindful of that.
Our little boy was the same when we started weaning, spoke to HV and she suggested Pear, Prune and Peaches to help. He now has baby rice with one of the above mixed in for breakfast as he’s back to pooing every day ☺️
Try some prunes it will definitely help now you’re weaning! X
From someone who has gone through the same I’d say it was normal (but not an expert) my LO was the same once a day like clockwork but recently since weaning its every 2-3 days. As long as your little one doesn’t seem uncomfortable then I’d say just monitor. I was told by my HV that you can now start introducing some cold boiled water to help with it.