Just wondering if anyone else has no idea what their baby measures? I’m 31 weeks and I haven’t gotten a single measurement of how big or small baby is. My OB said they usually do them at 36 weeks but she’s moving so now I’m having to find a new OB. I’m not sure if the new OB will do another ultrasound or not. I paid for a 4D ultrasound at 29 weeks at my OB office and no measurements were gotten. First time mom so I don’t know if this is normal or not.