You have to ask her if she hasn't told you.
I'm confused by your question as it mentions "liquor." There is no liquor in the pregnant uterus.
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The foetus was in longitudinal lie and cephalic presentation.
This means that the baby is up and down rather than side to side. Baby's head is down.
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Placenta was anterior with the lower margin 5cm from the os.
This may be a little concerning as the placenta is very close to the cervix. However, at 27 weeks this may change.
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Estimated foetal weight 1046 grams.
2.5 pounds or 1 kilogram
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The growth parameters are around the mean for the expected gestation excepting the head circumference which is slightly reduced below the mean
Head circumference is a little small for gestational age.
I am a Registered nurse, not a radiologist. Considering my profession is in Labor & Delivery, but not radiology, this is the best I can interpret these findings.
You will have to discuss your concerns with your doctor.