Sayang, perut mengeras boleh jadi Braxton Hicks contraction yang normal during pregnancy, tapi at 25 weeks, better safe than sorry, please check in dengan doctor or midwife kamu asap, especially if ada pain, spotting, or frequent tightening. A few of us mums had this and doc said it was normal, but setiap pregnancy lain, jangan take chances, okeh? Get it checked out properly so you dapat peace of mind!