Had my 30 week appointment this morning. Found out they rechecked my 20 week scan and baby is…

Had my 30 week appointment this morning. Found out they rechecked my 20 week scan and baby is measuring 9 days behind schedule. and found out that my uterus is measuring 2 weeks ahead. scheduling another growth scan and hopefully he's growing properly... She told me not to worry but of course that's all I can do... And on top of it his sitting really low and causing pain between my hips