Which due date to use?
Printed From: OHbaby!
Category: Pregnant
Forum Name: Pregnancy
Forum Description: Pregnant! Wanting to chat to other mums-to-be (or dads-to-be)? Share your thoughts, experiences, and ideas... This is that place!
URL: https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=25122
Printed Date: 24 August 2025 at 4:15pm Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Which due date to use?
Posted By: Katep
Subject: Which due date to use?
Date Posted: 10 March 2009 at 7:15pm
I'm confused to which due date to go by.
My last period was 18 or 19th October. So the due date for that is the 25th July. I believe I ovulated on the 2nd Nov and the deed was done on the 2nd Nov.
8 week scan put me due at 1st Aug.
12 week scan put me at 30th July.
Scan at 19 weeks put me at 6th Aug.
The OB said they can be out by a week, but it still puzzles me.
Do other people find this when they have scans?
I worry that at my last scan I was measured earlier because I haven't eaten enough or put on weight therefore baby too small. Any thoughts appreciated.
------------- http://lilypie.com">
Mum to the Gorgeous Leah!
7 months
|
Replies:
Posted By: mummyofprinces
Date Posted: 10 March 2009 at 7:35pm
"They" whoever they maybe, say that the earlier the scan the more accurate the dates.
There is only a day between the 8 week scan and 12 week scan so I would go with the middle and say July 31st.
What date is your midwife using, I am assuming 1st August.
If you are worried, talk to your midwife... they are usually pretty good at pointing our minds at ease. No 2 babies are alike and they grow at different rates...
-------------


|
Posted By: Two Blondinis
Date Posted: 10 March 2009 at 8:25pm
I ovulated on day 22 so Fertility Friend and my MW said my EDD would be 20th October.
I had a scan last week and baby was measuring exactly 8 weeks which is correct according to my LMP.
I asked what the chances are of that being wrong and she agreed that the earlier scans are the most accurate, so now my EDD is 14th October.
BTW 30th July is when all the great people are born *ahem*
------------- http://lilypie.com">

|
Posted By: weegee
Date Posted: 10 March 2009 at 9:24pm
What the others said - only I would add the advice my midwife gave me, which was to tell all your friends and family the latest possible date, to minimise the length of time you get phone calls asking you if you've had the baby yet 
-------------
Mum to JJ, 4 July 2008 & Addie, 28 July 2010
|
Posted By: busymum
Date Posted: 11 March 2009 at 4:06pm
Your mw will probably discuss amending the date at your next visit. I'd go with 1st August, it's kinda in the middle and means your hopes on the 20th July won't be too high 
-------------
|
Posted By: LadyLizard
Date Posted: 11 March 2009 at 7:15pm
Two Blondinis wrote:
I ovulated on day 22 so Fertility Friend and my MW said my EDD would be 20th October.
I had a scan last week and baby was measuring exactly 8 weeks which is correct according to my LMP.
I asked what the chances are of that being wrong and she agreed that the earlier scans are the most accurate, so now my EDD is 14th October.
BTW 30th July is when all the great people are born *ahem* |
Snap! I am due on 14th October too. DHs birthday!
------------- http://www.alterna-tickers.com">
|
Posted By: emz
Date Posted: 11 March 2009 at 7:24pm
The earlier the scan, the more accurate. Scans at 8 weeks are 1-2 days out, at 12 weeks up to a week, and from then on can be 1-2 weeks out.
They usually choose an early scan EDD over a LMP EDD too as I found out last time.
And no, your baby generally will not be smaller because you haven't been eating. Basically the baby will suck everything it needs from you and leave you with no reserves if it really has to!
|
Posted By: Courtney
Date Posted: 11 March 2009 at 8:06pm
I've had the same problem too. My dates have gone from the 7th of August to the 29th back to the 12th and the latest says the 22nd. Who knows???? I asked my midwife at the first meeting and she said that generally she wouldn't be able to get a heartbeat until eleven weeks but she got one loud and clear at nine?! I think they're finding it tricky because I have no LMP date - not that I don't remember when it arrived - I never even got one... not that month - not any month last year! Go figure! Magic baby
|
Posted By: SMoody
Date Posted: 11 March 2009 at 8:37pm
The 7 to 9 week scans are the most accurate ones and I will go with that due dates. That is what my gynae in SA said. After that it is more difficult to get accurate readings and babies start developing at their own paces. After 10 weeks they can be a bit out, depending on the person doing the scan and how old the equipment is and the babies develop differently.
------------- http://lilypie.com">
http://lilypie.com">
|
Posted By: Shezamumof3
Date Posted: 12 March 2009 at 9:28am
The earlier the scan the more accurate the date will be so, stick with the 1st August :)
-------------
|
|