Salam! Sayang, leg cramps ni memang common dalam pregnancy, tapi sebab you're experiencing pain yang bawa ke perut, please go see your doctor or go to the hospital sekarang , jangan tunggu, okay? Better safe than sorry when it comes to swollen legs and abdominal pain at 30+ weeks. A few of my mum friends ada leg cramps dekat pregnancy, tapi kalau ada pain spreading ke perut, that needs proper checking by your doctor je to make sure everything okay dengan baby and you. Jangan worry too much dulu, but get checked today lah! Take care of yourself, and keep me posted how it goes okay?