You have nicely eliminated the location of the Centre where sonography was done.
If you have any other Centre in your City where sonography is possible for a
pregnant woman, please get a repeat sonography done. All your questions will be answered.
I can say only one thing, that it is really difficult to do a proper sonography for a woman who is 5 feet 2 inches and weighs 87 kg. (BMI 35).
That is malignant obesity.