Just thought I would add thats its very normal with twins (especially ID twins as the risk of TTTT is higher) to have regular scans every week or two to monitor twins growth and how fluid levels or the placenta is functioning. If you are in a rural area people tend to freak out and refer you elsewhere as any twin pregnancy is classed as high risk even if its not. Perhaps if you are from a smaller region they are referring you elsewhere unneccessarily which smaller places have a tendency to do. Just thought I'd add that maybe its where you live that are stressing you unneccessarily. If they ended the scan early how much evidence could they have gained?