Baby measuring in 97th Percentile

I’m currently 35+2. At 32+4 I had a growth scan which showed that baby has dropped from being on the 50th percentile down to 42nd percentile. I was called back for a further growth scan at 34+4 which then showed that the baby had a large abdomen and was now in the 97th percentile. I have been asked to monitor my blood sugars for two weeks before having a further growth scan at 37wks.

My questions;

1. Has this happened to anyone else?

2. How can the baby put on that much weight (estimated 2lbs in two weeks) that quickly?

3. I’m following a low gi diet wherever possible. Could it be possible that at the next scan the baby’s size will have gone back to where it should be?

Thanks in advance.