You can ask your gynae for recommendations. Most likely will have to get it done at a private clinic. Just a suggestion, I did mine at 30 weeks and I didn’t get very good results because it was too tight in there and according to the technician, my baby’s face was tightly pressed onto the sides of my belly so the images weren’t clear/ complete (like can only get half of the face). She suggest that the best time to get it done is around 28 weeks.
Noordiana