Hai sayang, at 30 weeks baby movements boleh macam-macam je, some days they're slower, some days active sangat, and the tummy hardening (Braxton Hicks) is totally normal at this stage. Tapi since you're worried, best lah check dengan your doctor or midwife just to be safe and get your mind at ease, okay? A few of my mum friends had the same worry and their doctor just did a quick check and confirm semua okay, so don't stress yourself too much!