What does it mean if I'm measuring large for my stage of pregnancy?

One of the things we screen for diabetes in pregnancy, especially in earlier stages, is when the mother is growing very fast or if the mother is obese to start with (above 80kg). Doctors will always monitor the patient throughout pregnancy so gaining 15kg through the whole pregnancy in Singapore is quite common. Anything beyond and you growing very quickly, we will worry about the risk of diabetes - that's why you're not controlling your sugar well and getting bigger.