I'm 32 weeks pregnant and just had a growth scan that showed my amniotic fluid index is 22.2 cm. The doctor mentioned it's a bit high and suggested I get some blood tests done, like fbs and ppbs. They also said the baby's abdominal circumference is slightly above average. Does this mean I might have gestational diabetes? And what kind of diet should I be considering right now? Everything else with the baby's weight seems normal, so I'm just trying to understand what all this means.