Hb low, dah tukar ubat pun still low lagi

Hi mummies, nak tanya i dah 15 weeks tapi hb low. Last check hb drop than before. Tapi i makan sayur, buah, ubat, makan pati delima, minum susu. Any other tips untuk naikkan hb? Risau sebab haritu doktor cakap kalau low lagi next check up kena warded. Thank you mummies