Calculating the Estimated Date of Delivery (EDD)

A pregnancy takes 40 weeks calculated from the start of the last menstruation (period). However, very few babies arrive on the specific date given by calculating the EDD, while 95% are born between the 38th and 42nd week.

The calculation of the EDD assumes mid-cycle ovulation and subsequent conception. In women with a regular 28-day menstrual cycle this calculation may be relatively accurate, but for women with irregular cycles or longer cycles, the calculation may be less so.

If you wish to calculate your EDD, insert the date of the first day of your last period and we will provide you with the date:

Antenatal care

Once a pregnancy is established, a meeting with your gynecologist is recommended to ensure the well-being of both the expectant mother and baby. At these visits various examinations and screening tests will be performed, with attention given to testing of the blood and urine, weight control and blood pressure. Ultrasound scanning is used to confirm satisfactory progress of the baby. Although the recommendations for these consultations may vary slightly from country to country, generally consultations should occur at least once a month throughout the pregnancy.

A very small group of babies may develop abnormalities due to chromosomal irregularities and/or physical malformations. The investigations available for these are:

Air Travel and Pregnancy PDF (english)