1Are ultrasound safe during pregnancy? Yes ultrasound is safe during pregnancy . 2 How many ultrasound should one undergo during pregnancy? Though this depends on individual case but few scans are mandatory Dating scan 6-8 weeks Nuchal scan 11-13weeks Anomaly scan 18-20weeks Fetal echo 22-24weeks Color Doppler 28-30 weeks 3 Is 3d/4d/5d ultrasound safe? Oh yes absolutely .. These are softwares in ultrasound for better diagnosis and visualisation . For more info visit us at http://rahulgera.com/1Are-ultrasound-safe-during-pregnancy-Yes-ultrasound-is-safe-during-pregnancy-2-How-many-ultrasound-should-one-undergo-d/b172?utm_source=facebookpage