Fetal Development 34 Weeks Gestational Age?

Illustration of Fetal Development 34 Weeks Gestational Age?
Illustration: Fetal Development 34 Weeks Gestational Age? babycentre.co.uk

My womb age is from an estimated hpht of 34 weeks, while my fetal BPD is 8.17cm (32w6d) and FL is 5.80cm (30w2d) whether it’s still normal to say?

1 Answer:

Hello Mamass,


Thank you for the question.

Calculation of gestational age can be done referring to several things, including HPHT (first day of last menstruation) and the results of fetal measurements via ultrasound. Between the two methods of calculation above, so far that is considered more accurate is the measurement of the fetus through ultrasound by a doctor or obstetrician. Because, not a few mothers who do not remember exactly when the HPHT, especially mothers whose menstrual cycles were previously irregular. In addition, sometimes pregnant women also experience bleeding like menstruation during pregnancy (or referred to as implantation spots), so it often makes confusion in determining the HPHT.


If the calculation of gestational age is based on your HPHT, that your pregnancy is around 34 weeks, then the normal size of BPD (biparietal diameter) is around 84-88 mm and FL (femur length) ranges from 65-69 mm. However, as noted above, given the calculation of gestational age is not always accurate with HPHT, confirmation by ultrasound is necessary. As long as the difference is not too significant between calculations with HPHT and USG (no more than 2-4 weeks), it seems that this condition is still said to be normal. Although indeed, in some cases, your fetus may also be small, for example due to lack of nutritional intake, genetic factors, twins, chronic maternal disease that is not controlled, placental disorders, infection in the uterus, and many other possible triggering factors.


The obstetrician who is examining you is certainly more aware of this, based on the examination he did for you and your pregnancy. Therefore, you should discuss this directly with him yes ..


I hope this helps.

: by

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