The research is interesting but it doesn't state how many u/s can be harmful.
With both my other pregnancies i had 7 with my first and 5 with the next.

Kimbaz i should have said that you will need a refearal and a medical reason to have the 4d scan.
I have both because of this pregnancy being high risk and also with Alexander being born with kidney problems they have to make sure this baby doesn't have the same problem.