Radio ultrasound, i guess is just ultrasound to see into the uterine cavity
. The doctor may have to do trans vaginal ultrasound
for better visualization of the sac. The fact that you have 2 previous miscarriages does interfere much with your chances of having normal pregnancy
. You can have a normal pregnancy. Also, about a half of all pregnancies end as chemical pregnancy ie early miscarriages, and is not really something to worry about at this point. Yes you can have a very safe pregnancy, do not be worried.
Hope this helps