Anterior placenta 3D scan at 28 weeks

Hey mummies, I am currently 25 weeks and I have an anterior placenta. I just got to know from my gynae last week that I may not be able to be successful with the 3D scan since the placenta is blocking the baby :( any mummies managed to do the scan successfully despite the placenta’s position? Does the placenta move to another spot at later weeks? #FTM