6th percentile in weight

Je
Well I'm 36.3 weeks and my baby supposedly only weighs 4 Ibs 13oz. She is in 6th percentile for weight and I have to start stress tests this week... and until I have her. Anyone else experience this and baby end up being bigger than they said? Our first was born at 38 weeks and weighed 7 Ibs 15.2 oz