Talk to Gynecologist on Amniotic Fluid Excess

Hi I am 33 weeks pregnant and having gestational diebitese. My last visit to dr. Was quite disturbing as dr. Told me that baby is over weight and my weight is constant i.e. 65 kgs. As per ultra sound it shows i am 37 weeks pregnant but in real i am 33 weeks pregnant. Which, as ler dr. Is also the reason of high amniotic fluid. I am following dr. Prescription and change of medicine but still scared if it is going to harm the baby. My sugar levels are controlled (not to high not to low) bit still dr. Recommend me to control it more so that baby could losse some weight. I am unable to attach my ultra sound report here. Not sure why.