Early pregnancy ultrasound during the 6th till 11th week of pregnancy, assessment of multiple pregnancy during the 10th till 12th week, embryo reduction, nuchal translucency scan during week 11 till 14, chorionic villus sampling, 3D and 4D ultrasound in the 1st trimester, amniocentesis during weeks 16 till 18, second and advanced ultrasound in weeks 18 till 23, premature birth scan, cordocentesis between weeks 18 till 20 and later, 3D and 4D ultrasound in the 2nd trimester, detection of fetal development anomalies between weeks 28 till 32.