Congrats you r having your No.2 ! R you visiting any gynae now, if yes .. there should be at least a 3d ultrasound scan for every of your appt. 3d scan, you can c your little one in 3 dimensional view, for 4d scan, you can c your little one moving .. kicking, smiling,burping, & even waving at you.
I paid for 1st & 2nd appt, about $124per visit. 3rd appt i took up the package which is $650 till the last visit (*so i dont't need to pay anything for my visit starting from 3rd visit) I did the oscar for $340, during my oscar I am lucky my gynae used a 4d scan on me (*with no additional cost), so can see the baby kicking inside. My gynae well-equip with 3d & 4d scan machine, it will be used at certain appt that gynae thinks that you need a very clear movement of your baby.