How accurate are ultrasounds in the 6 week to 16 week period? Are the earliest the most accurate, and are they still off by a few days. I need very accurate, and experienced by moms answers only, please.
2006-10-11 12:01:45 · 7 answers · asked by curious T 1 in Pregnancy & Parenting ➔ Pregnancy
If trying to determine the due date of a baby, the earlier ultrasounds are much better than the later ones (around 20 weeks and after). The reason for this is that early embryos generally grow at the same rate and by 20th week, babies can differ greatly in size because of nutrition and genetics etc.
2006-10-11 12:06:32 · answer #1 · answered by alex's mummyc 2 · 0⤊ 0⤋
When you're talking about due dates and progress, the eariler ultrasounds are much more accurate. The later in pregnancy, the less accurate they become. the 16-20 week ultrasound measures the baby's size and growth, but after that, any ultrasounds approximating the weight at birth, can be off by as much as a pound or more.
2006-10-11 12:06:02 · answer #2 · answered by Cara M 4 · 0⤊ 0⤋
That is when they are the most accurate, after 20 weeks they diminish..if you are talking about your due date and when you actually conceived. They always can be off by a few day though, all babies develop at different rate some are bigger than others etc. I had 5 ultrasound with my 1st child early middle and late pregnancy and they all gave me different due dates...good luck finding out who it was though....
2006-10-11 12:07:23 · answer #3 · answered by - 4 · 0⤊ 0⤋
The earlier the better - I am diabetic so they need to measure early on to have an accurate edd (since diabetic babies can be large). My 2 were measured at 6-8 wks.
There is also a certain amount of inaccuracy due to the skill of the ultrasonographer. For this reason they take 3 measurements and average them.
2006-10-11 12:21:24 · answer #4 · answered by Anonymous · 0⤊ 0⤋
They are more accurate if you get them early in the pregnancy.And when they tell you what you are having listen,but don't listen when you buy clothes buy them neutral.Doctors told my sister she was having a boy and they were for sure,she had a girl the hernia was in the way.
2006-10-11 12:12:42 · answer #5 · answered by Sister Queen Mama 3 · 0⤊ 0⤋
They are totally accurate 95%
2006-10-11 13:22:04 · answer #6 · answered by Anonymous · 1⤊ 0⤋
10 days distinction isn't a huge distinction. The physician is somewhat in basic terms attempting to get a wager to make optimistic the child is becoming at a good value and save you and the child healthful. Congrats!!
2016-10-02 05:06:19 · answer #7 · answered by hobin 4 · 0⤊ 0⤋