Anyone else been told...

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Anyone been told that their baby is measuring small in the head, stomach, and femur? Also has been told their fluid was a little low? I'm 33wks 3days and at my last ultra sound I was told all this. They say she is weighing in at 4lbs 8oz. I have another more in depth ultra sound Tuesday to look at things further but I'm just wondering if anyone else was told these things and baby was fine.