Sayang, at 38 weeks dengan sakit bawah yang terucuk-ucuk, you really need to call your doctor or go to the hospital today, jangan tunggu, okay? Better safe than sorry, especially since you're hoping for normal delivery this time. A few of my mum friends juga experience different signs for each pregnancy, so only your doctor can check if these are actual labour signs or something else. Jangan risau, just get checked out immediately!