Hi, my last baby was 9lb 15 so I had to have a GTT at 28 weeks which came back clear. They then booked me for a growth scan at 34 weeks. I had the scan and was told that she was 7 and half pounds so would be about 10lbs when born but booked me for another growth scan at 38 weeks. At that scan the growth rate had slowed and showed that she was under 9lb and would be just over when she was born. They then booked me an appointment for the day before I am due and said they would give me a date to induce me as obviously babies carry on putting on weight after the due date and they don't her to get too big (my 9lb 15 baby came 2 days late so I dread to think how big he would have been if I had gone 2 weeks over). I am due next week and have my appointment on Wednesday, I am relieved that they are going to arrange for me to be induced and not let me go over as I am really fed up now and can't wait to hold her in my arms. Maybe your baby had a growth spurt or is just going to be big but at least you are being monitored as I have heard stories about big babies getting stuck etc. Also the scans are not always right, my friend was told her baby was going to be over 10lb and came out 8lb 14.
Try not to worry, just enjoy all the extra scans you are getting, on my last one I saw her open her mouth, blob her tongue out and swallow, it was lovely to see. Good luck, hope everything goes ok. Kerry.