Optimum Time Calendar

This easy-to-use calendar helps you to work out the optimum time to schedule your 3d/4d ultrasound appointment. Simply click on your due date and let the calender work it out for you.

  • The Optimum time is between 27 and 32 weeks gestation.
  • An alternative Good time is either side of this range at 24 - 26 weeks or 32 - 35 weeks
  • A Fair time is between 19 - 24 (This is when we mainly perform gender determination only scans).

Legend

Fair Time

Good Time

Optimum Time

Due Date