I had a scan 3 days before labout with DS2, predicted weight 7lb, actual weight 8lb 2oz. My sister decided against a VBAC because of a predicted weight of over 10lb (and I know that's not really a reason not to VBAC but she has it in her head she cannot birth a big baby as she is so slim) and her daughter was born weighing 8lb 2oz a couple of days later.

I's so interesting to see other people's experiences of inaccurate weight estimates.