head and CRL measuring different weeks

porkpie1981 · Oct 5th, 2008, 09:54 AM

As may all know ive had bleeding on and off. Everytime i go to the hospital the baby is fine

I finally was given my hospital notes and ive been able to get a pic of last weeks scan. Now i thought that they had put me forward to march 19th as thats what they said last week but apperently the head measurement gave me a EDD of the 19th whereas the CRL is the 25th.

This is driving me nuts as my dates are always getting changed.Do u think a weeks difference is anything to worry about?

P.S U can see the dates and measurements in the scan pic

Mo_mo · Oct 5th, 2008, 10:28 AM

apparently from what ive read the head measurement (bpd) is more accurate than the crl.
Im sure they would have told you if it was something to worry about.

izzy29 · Oct 5th, 2008, 11:32 AM

My dates keep differing by a week too but I am just going by the original one which puts me further on, prob wont make a difference but mentally its better for me!

porkpie1981 · Oct 5th, 2008, 12:03 PM

Quote:

Originally Posted by Mo_mo

apparently from what ive read the head measurement (bpd) is more accurate than the crl.
Im sure they would have told you if it was something to worry about.

I hope so as they put me 2 weeks back at the start of my pregnancy so i was pleased when it went 1 week forward. Just have to wait to my 20 week scan i suppose

VicLl · Oct 5th, 2008, 12:22 PM

My baby's measurements are slightly out from each other too and I don't think it's much to worry about. My dates have changed three times, but I know when I ovulated so I'm sticking with my own information.

hellotasha · Oct 5th, 2008, 12:33 PM

yeah mine were like that & the midwife said with all the dates they get a estimate from them, she said when its only a few days ect its fine x

ajarvis · Oct 5th, 2008, 22:11 PM

I've always been told by doctors, and have read, that the earlier the scan the more accurate later on they get less acurate for dating purposes.

plumpnpretty86 · Oct 5th, 2008, 22:38 PM

Yah i wouldn't worry about it, and once you get to about 30 weeks when they do the measurements they can be off by a week or over by a week, If it is anything to worry about they will tell you. No Worries

ashdan · May 18th, 2010, 12:26 PM

What does everyone think of these measurements in terms of accuracy?

12 weeks exactly- CRL 51mm and 53.7mm on the same day....
19 weeks exactly- BPD 43mm, FL 27mm and HC 159mm

what have everyone else's measurements been? I can't find anything consistent on websites.

Oct 5th, 2008, 09:54 AM	#1
porkpie1981 Mum (Mom) BnB Addict Join Date: Apr 2008 Location: Belfast Posts: 9,107	head and CRL measuring different weeks As may all know ive had bleeding on and off. Everytime i go to the hospital the baby is fine I finally was given my hospital notes and ive been able to get a pic of last weeks scan. Now i thought that they had put me forward to march 19th as thats what they said last week but apperently the head measurement gave me a EDD of the 19th whereas the CRL is the 25th. This is driving me nuts as my dates are always getting changed.Do u think a weeks difference is anything to worry about? P.S U can see the dates and measurements in the scan pic

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Oct 5th, 2008, 10:28 AM	#2
Mo_mo Mum (Mom) Active BnB Member Join Date: May 2008 Location: London Posts: 170	apparently from what ive read the head measurement (bpd) is more accurate than the crl. Im sure they would have told you if it was something to worry about.

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Oct 5th, 2008, 11:32 AM	#3
izzy29 Pregnant (Expecting) Active BnB Member Join Date: May 2008 Location: N.Ireland Posts: 476	My dates keep differing by a week too but I am just going by the original one which puts me further on, prob wont make a difference but mentally its better for me!

Status: Offline

Oct 5th, 2008, 12:22 PM	#5
VicLl Pregnant (Expecting) Active BnB Member Join Date: Aug 2008 Posts: 792	My baby's measurements are slightly out from each other too and I don't think it's much to worry about. My dates have changed three times, but I know when I ovulated so I'm sticking with my own information.

Status: Offline

Oct 5th, 2008, 12:33 PM	#6
hellotasha Other BnB Addict Join Date: Jul 2008 Posts: 2,554	yeah mine were like that & the midwife said with all the dates they get a estimate from them, she said when its only a few days ect its fine x

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Oct 5th, 2008, 22:11 PM	#7
ajarvis Pregnant (Expecting) Chat Happy BnB Member Join Date: Sep 2008 Location: Calgary Posts: 2,301	I've always been told by doctors, and have read, that the earlier the scan the more accurate later on they get less acurate for dating purposes.

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Oct 5th, 2008, 22:38 PM	#8
plumpnpretty86 Pregnant (Expecting) New BnB Member Join Date: Oct 2008 Location: Edmonton Posts: 9	Yah i wouldn't worry about it, and once you get to about 30 weeks when they do the measurements they can be off by a week or over by a week, If it is anything to worry about they will tell you. No Worries

Status: Offline

May 18th, 2010, 12:26 PM	#9
ashdan Pregnant (Expecting) Active BnB Member Join Date: May 2010 Posts: 46	What does everyone think of these measurements in terms of accuracy? 12 weeks exactly- CRL 51mm and 53.7mm on the same day.... 19 weeks exactly- BPD 43mm, FL 27mm and HC 159mm what have everyone else's measurements been? I can't find anything consistent on websites.

Status: Offline

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