Ask an expert

15 Jul 2005

Ultasound due date
I have just had my second ultrasound and according to my last menstration and my doctor I am around 16 weeks with my due date being the 31st December. With today's ultrasound they took some more measurements and according to the measurement taken of the head the due date is the 20th of December and reflects that i am 18 weeks-however i am sure of the 16 weeks since i know date of conception. Does this mean that my baby is growing too fast or has something wrong with it? I am worrying myself sick. Please help
Answer 502 views

01 Jan 0001

Pregnancy time is worked out from the last menstrual period. Ovulation does not always occur when expected. If, for example it occurred on Day 7 instead of Day 14, this would make the baby a week older. There is nothing to worry about.

Best wishes
The information provided does not constitute a diagnosis of your condition. You should consult a medical practitioner or other appropriate health care professional for a physical examination, diagnosis and formal advice. Health24 and the expert accept no responsibility or liability for any damage or personal harm you may suffer resulting from making use of this content.
Voting Booth
Have you entered our Health of the Nation survey?
Please select an option Oops! Something went wrong, please try again later.
32% - 9425 votes
68% - 19886 votes