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If you are in the early stages of pregnancy &-8 weeks it will only be off by a day or two. By twelve weeks may be 3 days, 18/20 weeks 4-5 days. From then on it becomes more difficult as babies end up different sizes. Not at an early stage. Are you further on than you thought or not as far on as you thought? Give a few more details and I can tell you a bit more.
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∙ 15y ago
Wiki User
∙ 16y agoThat's unlikely.
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At 18 and a half weeks pregnant can an ultrasound read at 20 weeks what would be the reason Is the baby big can an ultrasound be off by 10 days?
At this stage, yes the ultrasound can be off by 10 days. Mine was off by ten days the other way, that is I thought I was 18 weeks and the ultrasound said 16 and a half. I knew when I had conceived because my husband had been away on a trip.
Can an ultrasound at fourteen weeks be off by two weeks?
Yes
My ultrasound puts me at 21 weeks preg that would mean I was feeling movement at 14 weeks took cheap home test at 3 weeks now measure 26CM and not sure of LMP could ultrasound be off by 3 or 4 weeks?
my ultrasound said that my last period was nov25 could it be right
Can a ultrasound be ten weeks off if you think your 12 weeks and ultrasound reads your 22 weeks?
Ultrasounds are fairly accurate - a fetus at 12 weeks is very small. A 22 week fetus is fairly large. They measure how big bones are, and the distance around the head. There is no mistaking a 12 weeker for a 22 weeker.
Why are 2 weeks taken off your ultrasound scan age?
Because it's about 12 days of conception
I Should be 7 weeks but ultrasound says 6 could my due date be off?
It is unlikely that they would be that far off. They're often off by a couple of days or weeks, but not usually 1 1/2 months off. I strongly suggest that you speak to your doctor about it for more information.
When did you conceive if your ultrasound says you are fourteen weeks pregnant?
Subtract fourteen weeks (7 days x 14) from the date of the ultrasound.
How many days out could a scan be?
An obstetrical ultrasound can be as much as 1-2 weeks off, before or after the due date.
Will an ultrasound show heartbeat if you are 6 weeks pregnant?
You could see a heartbeat if they do a transvaginal ultrasound.
How far along must a woman be to figure out the sex of the baby?
The sex of your baby can be determined by ultrasound at 16 weeks. Doctors will usually do an ultrasound at 20 weeks.
If ultrasound said you were 4.5 weeks pregnant when did you get pregnant?
Around 2.5 weeks ago.
8 weeks pregnant went in for ultrasound saw sac but no baby now have to wait for another week for another ultrasound is it normal to be off on the weeks pregnant?
it is called a blighted ovum if your counting of the age of gestation is correct and yet no baby is formed except of the sac. on the otherhand if you are not sure of your counting then do an ultrasound 1-2 weeks after your first ultrasound to see whether the baby develops or not at all. just cant flawlessly explain the blighted ovum. check out on the web or much better ask your physician.
