Your wife seems to be in danger. A hemoglobin
count of 5.6 in 32 week’s pregnancy
is definitely not a good sign.
She needs to be started on intravenous iron or she may also require packed cells transfusion.
According to International standards, Anemia
is considered when the hemoglobin level is less than 11. In India, the same is considered below 10.
There is definitely a need for urgent management of your pregnant wife. Please take her to the Obstetrician and discuss about these options.
Hope this helps.