My son is now 大便 三日一次, he is now 11 weeks, he used to have 大便兩日一次 ever since he is born, I change from A+ to 明冶 when he was 8 weeks. Is something wrong in my milk preparation, 1.5 spoon for every ounce, any body has this problem, please help, I am very worried :cry: :cry: :cry: