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).

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