Waalaikumassalam sis, risau tu normal la especially kalau HB terus drop macam tu, covid memang boleh affect hemoglobin level. A few of my mum friends yang ada low HB, doktor depa terus kena supplement iron, bukan depend on makanan je, sebab timing and absorption penting sangat during pregnancy. I think you really perlu go back to your doctor and request blood test lagi, maybe kena iron supplements yang prescribed or even transfusion kalau critical, especially at 8.2, tak boleh biarkan je sampai dekat delivery nanti risky for both you and baby.