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How off can an ultrasound be that estimated your last menstrual period the same at eight weeks and twelve weeks?
Wiki User
∙ 18y ago
I think this is what you mean. For example. On 28th December the ultrasound said you were 8 weeks pregnant, then on 25th January it said you were 12 weeks pregnant. This would be accurate to within 4-5 days each time.
Wiki User
∙ 18y ago
Wiki User
∙ 16y agoAftere having had two healthy babies and one miscarriage, I have found ulrasounds to be extremely accurate in dating a pregnancy. My OB is now only performing the initial ultrasound at 8 weeks due to the fact that so many pregnancies end in spontaneous miscarriage (20% of all pregnancies). They would not have patients wait until 8 weeks if they felt the process would inaccurately date the pregnancy. Dating is important in order to make sure that screenings are done at the appropriate times for accurate results (quad screen, glucose test, group b strep swab, etc.). I hope this helps you and good luck!
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How are we supposed to answer this? We don't know your menstrual cycles to know when your periods may be due, you should know this to determine your next period.
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go to teenhealth.com
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twelve to fourteen days after your period starts.
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In order to be considered a negligent operator how many points must you have in a twelve-month period?
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How many miles north of Piedmont did the computer projections predict the Estimated Site of Arrival of the satellite?
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If you were eleven going on twelve and your mom had her period when she was 10 is it weird that you don't have your period yet?
No allot of people don't get there period until there 13 or 14.
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Probably twelve even though i am twelve and haven't had mine. Every girl has it at a different time i guess
When did you get pregnant if your ultrasound measured 12 weeks and 1 day on July 7 th?
Twelve weeks and one day before July 7 is April 13.
