Ultrasound pictures

Shelbi

So i went to my obgyn appointment and do the usual checking on baby. But some coworkers asked if i had 3D pictures done and i said No. They looked at me weirdly and said thats strange. So do i have to ask for 3D pictures or something because i do want a 3D picture but i dont know if i have to be a high risk or something. Im just kinda of confused about it.