Normal je, sis! A few of my mum friends also didn't have colostrum coming out until after delivery, some even a few days after, so don't worry. Setiap orang beza-beza, ada yang keluar awal, ada yang tunggu baby arrives dulu. About the umbilical cord pain though, best check with your doctor or midwife, sebab that's something worth getting checked just to be safe, especially at this stage of pregnancy.