Hb level low

Hi all...during my first check up for pregnancy, my Hb level was 14.8(during 7 weeks). After several check up, my Hb level is decreasing and currently my Hb level is 9.8(22 weeks). Appreciated for any tips or supplement that I can eat or drink to increase my Hb level so that it wont decreasing drastically...thank you?risau juga ni