Ahhh, cirit birit from pregnancy milk memang common! A few of my mum friends had the same issue, some lactose intolerant jadi triggered, some the formulation tu tak agree dengan perut mereka jer. Try switching brands lagi atau minum slowly in smaller portions, sometimes our body just rejects certain supplements masa pregnant. Tapi since it's happening with dua brands sudah, mesti check dengan doctor atau midwife you, boleh jadi ada sensitivity ke ingredients tertentu atau tummy issues lain yang kena address, dorang boleh suggest alternatives yang lebih suitable untuk you, like maybe plain milk or other sources of calcium instead.