It is common for babies to have irregular bowel movements, especially in the first few months. However, if your baby is experiencing discomfort or going longer than usual without passing motion, there are several things you can try to help regulate his bowel movements. Firstly, ensure that he is getting enough fluids by breastfeeding or formula feeding frequently. You can also gently massage his tummy in a clockwise direction to stimulate digestion and relieve constipation. Additionally, include fiber-rich foods like pureed fruits and vegetables in his diet once he starts solids. If these measures don't improve the situation or if your baby shows signs of distress such as excessive crying or vomiting, it's important to consult your pediatrician for further evaluation and guidance.