Aww mama, jangan worry sangat! 30 weeks dengan 1.3kg tu memang on the smaller side, but every baby grows differently, a few of us mums went through the same worry and our babies caught up beautifully after birth. Definitely chat with your doctor or midwife about this so they can monitor closely and make sure everything's progressing well, sebab they'll know your full history and can do proper scans to check. Hang in there, first-time mum feelings are the worst!