A couple questions

[baby796607]

My first question is about the positioning of the baby.. I had an ultrasound done almost two weeks ago and the baby's head was already really low down...she just kept mentioning that he was pretty low..  Is it normal for the baby's head to be down low already at that point I was around 21 1/2 weeks pregnant.. my second question is about the baby's measurements.. he was measuring a week ahead at about 22 1/2 weeks and they said he weighs roughly around 1lb2oz.. is it normal for babies to measure a little ahead of a little behind?? Thanks for your time!

[Keith Downing, MD]

Hello,

Babies positioning can change throughout the pregnancy.   The position of the baby around 36 weeks is usually where they will stay.  The suggestion that your baby was "low" is meaningless and not something you should worry about.  

All fetal measurements are an estimation.  The earlier a fetal ultrasound the more accurate the estimated age.  As babies advances in age there is more variation from baby to baby and the measurements are less reliable.  Remember, your baby is being compared to a large group of other normal babies and there is a range of normal.  So when they measure a femur length, head circumferenc or abdominal circumference you will usually see some variation in weeks.  This is normal and doesn't change ones dating.    

Best regards,

Dr. Downing

[pmperez]

My baby has measured a week ahead since they first did an ultrasound on me, but I think it all levels out in the end.....Im not sure about the positioning...but some people say that boys carry low??