Hello, I am Dr Owen, I am a Board Certified Ob/Gyn Medical Doctor and I want to help you.
All fetus' grow at the same rate but could be off by as much as 8%
So an 11 week ultrasound would NEVER be mistaken for a 7 to 8 week fetus -
so there is no way that would be possible.
I hope that helps
If you have more questions, please ask
So to explain what 8% means -
an 11 week fetus could be off by as much as about 6 days
a 7 week fetus could be off by as much as 4 days
So you can see you can NEVER mistake an 11 week fetus for a 7 week fetus.
Please click on EXCELLENT
How accurate would an abdominal ultrasound be at 7 weeks? I had an abdominal ultrasound (I am thin so they said it would be ok), but it didn't line up with LMP, so I was just wondering if it could be off.
If the abdominal can measure a 7 week fetus it is JUST as accurate as the vaginal - the measurements of the machine are the exact same.
Honestly we really do not take into consideration LMP when doing an Ultrasond.
and there is No possible way a 7 week measurement no matter how it is done can be confused with an 11 week ultrasound - it is absolutely impossible.
and since you had a 7 week ultrasound - that is the ultrasound that is used -
ok thank you!
You are welcome
Is it true that you can tell future skin color from cuticles/ear color? When do most mixed babies get their skin color? When does true eye color set in?