Hiii, yang kerap mengeras tu memang normal especially dekat 36 weeks, baby dah besar jadi uterus tu lebih sensitif dan akan kontrak more easily lah. A few of my mum friends had the same thing dekat third trimester and all turned out fine, but yang penting is kalau contractions tu painful, regular (like every 5-10 mins), atau ada spotting, kena inform your doctor straightaway sebab bisa Braxton Hicks atau something else yang perlu check. Just relax, drink more water, and monitor lang, you're almost there mama!