Alamak, please jangan tunggu lama, cramp time pregnant ni boleh sebab macam-macam, so the safest thing is to call your doctor or klinik terus today, especially since it's been since last night. I pun pernah rasa cramp ringan early pregnancy, tapi honestly I tak tahu sendiri whether it was "normal" or not, doctor je yang boleh confirm, so don't try to guess like I did! Take care of yourself and baby, ya!