Assalamualaikum dear! Sakit bawah perut dan pinggang yang severe macam tu, especially kalau ngilu2 mcm dihiris, kena check dengan doctor atau go to hospital sekarang juga okay, better safe than sorry when you're pregnant, lah. A few of us moms pernah experience Braxton Hicks or ligament pain, tapi sakit yang really intense kena confirm dengan medical team first, sebab 28 weeks tu important stage. Jangan delay, nak? Go get checked out, doctor kat clinic or hospital nearby can see you today. Sending you lots of love, hope you feel better soon!