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Category: Newly Pregnant

Asked by aal2014

Q: Ultrasound question

My last menstrual cycle was on July 26th so according to that I would be 8 weeks and 3 days pregnant today but I had a ultrasound on Thursday and the baby was measuring 8 weeks 4 days so does anyone know how that works? Should I go off my last menstrual cycle or should I go off what the ultrasound said to know how many weeks I am?

Thanks :)

This question was asked Sep. 22, 2014 4:02pm
Category: Newly Pregnant

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Answered by aal2014 - Sep. 23, 2014 11:24am
Thanks ladies, I have 2 living children but they are 9 and 4 so I couldn't really remember how it worked :)

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Answered by TXkadams - Sep. 22, 2014 10:56pm
Don't stress about the exact date. My doc says US measurements are only good within about a week and the LMP date is only good if you have a 14 day follicular phase. But more importantly, very few babies arrive on their exact due date. So assume your birth will be within a week or two of both of those dates, but probably not on either one of them exactly.

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Answered by stickybean1976 - Sep. 22, 2014 9:39pm
Sorry typo you own dates mean ...

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Answered by stickybean1976 - Sep. 22, 2014 9:38pm
Alway Go off the u/s your win dates mean nothing and it's only one day that could fall back or increase some people have several days difference. But it's the u/s measurements that are correct not our dates after you start having u/s's gl

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Answered by susan44 - Sep. 22, 2014 6:21pm
Throughout my pregnancy my the dates have been a little off - LMP was a due date of 9/21 but the ultrasounds always said 17th/18th DR stayed with the original LMP date because they were so close so may be the same for you because the dates are so close, my dr said the growth of the baby will fluctuate throughout and sometimes they measure a little bigger then maybe the next a little smaller so they will not change the due date unless there is a big difference. With my first pregnancy I was unsure of dates so we went off the ultrasound measurements and my daughter still arrived a week after that.

Good luck!

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Answered by TotMama - Sep. 22, 2014 6:07pm
I would go by your ultrasound measurements because those are most accurate. When I went in for my first scan I was under the impression I was just over 11wks but due to the measurements of the baby they changed my due date. The baby measured at 12+ weeks :) hope that helped. Congrats :)

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