Hypochromic and microcytic blood picture is most often due to iron deficiency anemia
. The test results you have sent also show the same thing. Since your wife is already in the last trimester, oral treatment with haematinics is not going to be of much help in improving her condition before delivery. Also, the treatment mode depends on the amount of anemia, the symptoms it is causing and the general condition of your wife. If it is so severe so as to cause severe symptoms, she may need a blood transfusion
followed by injections of iron. You should discuss further management with her doctor. Take care.