First Trimester of Pregnancy Forum - Accuracy of Ultrasound During Pregnancy

Pregnancy Forum > First Trimester of Pregnancy Forum > Accuracy of Ultrasound During Pregnancy

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Q: Accuracy of Ultrasound During Pregnancy

asked by: anita66 on January 7th, 2007

New User

Hello,

i am currently 28 weeks pregnant, with an edd of 3-30-07. I first found out when I was around 5 weeks pregnanct, according to my Dr. Via ultrasound. The first ultrasound only showed a sac w/out a heartbeat.

My question is that can an early ultrasound be off by 4 to 5 weeks in determining the age of the pregnancy.

Tx,

Replies(2)

Jules

replied on January 7th, 2007

Extremely eHealthy

Re: Accuracy of Ultrasound During Pregnancy

anita66 wrote:

hello,

i am currently 28 weeks pregnant, with an edd of 3-30-07. I first found out when I was around 5 weeks pregnanct, according to my Dr. Via ultrasound. The first ultrasound only showed a sac w/out a heartbeat.

My question is that can an early ultrasound be off by 4 to 5 weeks in determining the age of the pregnancy.

Tx,

hello! I would say not because if you were further advanced in pregnany then there would be a visible heartbeat and the embryo would be bigger. If you were less advanced then you would basically not be pregnant at all because you were only 5 weeks at the u/s! I had an early u/s at 5 weeks and the heart was visible to be beating then and the baby was the size of a small bean.

Are you worried about your dates?

mommao3

replied on January 8th, 2007

New User

An early ultrasound is usually right on due to the different milestones that occur each week. I would say that it is the right due date. Only when you get further along, can it vary by a few weeks. Congrats!

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