Your body knows what it is doing, honestly.

Dr told me my first son was going to be "huge". He was 4.3kg so a big baby but they were surprised he wasn't bigger. According to all the measurements, he was supposed to be almost 5kg. He was induced as I was almost 2 weeks overdue and I had him naturally with only a small amount of tearing due to his positioning.

My second son was, in the Drs terms, was going to be a "Gigantor but that seems to be what you body produces" . Apparently he was going to be at least 5kgs because he was measuring bigger than DS1. He was born naturally and he weighed 3.4kg.

So to answer your question, ignore the Drs as they can be wrong. Follow your instincts.