Ahhh I understand lah, especially scary when you're pregnant and kena covid pa on top of that! Sakit bawah pusat sebelah kiri boleh jadi ligament pain (round ligament stretching) yang normal dalam first trimester, tapi since it's different from your usual cramps and dah 2 days, better check with your doctor or midwife cepat2, especially dengan covid situation sekarang, better to be safe kan, confirm everything okay with baby. A few of my mum friends had similar pains in early pregnancy and turned out fine, but yours perlu peace of mind lah, so jangan tahan2, message your gynae or go to clinic tomorrow.