Hello everyone, I recently had three screening tests paid for, after w…

Hello everyone, I recently had three screening tests paid for, after which the little one was very strong and moved from side to side (I haven't seen that before), my stomach hurt from her pinches. Now I calmed down, but I am worried because on ultrasound they found single umbilical cord around the neck, and after these twists I am afraid it might get worse all at once. I am very worried and want to do another ultrasound... Can a doctor prescribe me another ultrasound in the clinic? Or is there more than three that aren't allowed and I have to go privately? In principle, I only went through the first screening in the clinic, the rest were paid for. Could they prescribe an ultrasound based on my request?