Hey ladies..... Went today for growth scan 32weeks come Wednesday 47th percentile??!!!!

So today was my growth scan at close to 32weeks our BABYGIRL looks great and she said estimated around 4plz possibly 47percentile. My question is is that good, is that HUGE, what is 47percentile mean when measuring a baby at this stage. My son weighed 6plds 10ounces when I had him and they said all along he would be 8plds soooooo I'm kinda Leary about these scans. She did say they can be off if the baby is in a ball lol well my baby is transverse right now.