So we went for our 3d ultrasound today, I'm 28 weeks and 3 days along and sometimes our baby boy would look "deformed" on the ultrasound...the tech said he was adorable but I'm trying to make sure there's no cause for concern... could it have been because he was moving so much and the screen couldn't keep up so it lagged? Some pictures look normal, in the others he looks weird. :(