Alot of places normally don't do more than one ultrasound unless there is complications or unless they do a growth scan in the 3rd trimester
You most likely won't have another one, if you do it won't be until 37 weeks
You can always pay for a 3d ultrasound. They usually don't do another after the anatomy scan.
You can ask your doctor if you can have another one done. Most places only do 1-2 but your doctor may do another one for you if you ask.
With my first I only got one every month then when I was closer to my due date every two weeks. It just matters on your doctor. My doctor likes to keep a eye on the babies
I would highly recommend a 3d scan does cost you out of pocket but its amazing :)
Thanks I shall check into it all on Thursday.