Aih, actually yes lah, normal je kalau fully breastfed baby berak once a day, a few of us mums noticed our babies did that around 3 months, especially if they're putting on weight okay and seem happy! But since you're a bit worried, better check with your paediatrician just to confirm everything's on track, especially to rule out any blockage or digestion issues lah. They can give you peace of mind in two minutes.