Jangan risau sangat, dear, ramai mums pun tak ada tanda-tanda langsung sampai betul-betul nak masuk labour, even at 38 weeks, and that's completely normal. Yang penting, bila contraction betul-betul start nanti, ia akan jadi rhythmic and get stronger over time, lasting around 30 to 70 seconds each, that's how you'll know it's the real thing and bukan Braxton Hicks. Someone in my mum group mentioned that even without early signs, ramai mums still went into labour naturally between 40 to 43 weeks, so there's still good time ahead for you. Semoga Allah permudahkan for a smooth normal delivery this time, but do share your hopes with your doctor or specialist so they can guide you best based on your specific history, ya.