Png Png's first on passing motion

Png Png stopped taking his dinner when I was feeding him half way. I was irritated and tried coaxing him with different toys. He kept rejecting then he blurted the word da pian. WOW! I quickly unbuckled him and brought him down from his high chair to clean him. It was true that he soiled his diaper. I was very happy that he told me he passed motion. While changing him I told him next time tell mummy before you pass motion, not after you passed motion alright Hmmm.... this mummy. Was I asking too much at this stage. He is 22 month old. I should be very happy that he marked another milestone in his development.