Doctor insights on:
17 Week Fetus
Yes: there is considerable development and increase in size in the 4 weeks. ...Read more
Do fetuses have quieter weeks n active weeks? At 30wks. She moves but seems to be having a quieter week?
Yes: There is very limitless variation at this time. ...Read more
Can the reading of a 10 week gestational age be wrong? Is it possible that the crown can be larger than other fetuses?
Yes: Prenatal ultrasounds are not 100% accurate. Readings also depend on the training and experience of the tech and the ob. Ultrasonography cannot detect certain anomalies in the fetuses. There have been cases when fetuses have been aborted to find out, in the post-mortem, that they were perfectly normal. But, ultrasound remains a great diagnostic tool and many lives have been saved by it. ...Read moreSee 1 more doctor answer
Maybe but not likely: You have to understand that the usual way to date is weeks from the menstrual period, which is presumed( but not always )2 weeks from conception. But, if a good ultrasound is done and the first third of pregnancy, it should be accurate to within 5 days, not 2 weeks off! if within 5 days, they way still go by the menstrual period or probable date of conception... Talk to your ob! hope this helps. ...Read more
Yes and No: The development of the embryo (it's an embryo until the 2nd trimester, when it becomes a fetus), is on a continuum. While there are differences in organ development between 11-13w, more important difference is between 37-39 weeks. It's important to establish due date in first trimester. Management decisions at 11-13w aren't as crucial as they become at 37-40 weeks. 11-13w woman do NT screen ...Read moreSee 1 more doctor answer
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