https://www.ohbaby.co.nz/forum/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Tue, 07 Apr 2026 11:22:27 +0000 Mon, 18 Jul 2011 11:27:25 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.05 360 https://www.ohbaby.co.nz/forum/RSS_post_feed.asp?TID=39829 https://www.ohbaby.co.nz/forum/forum_images/web_wiz_forums.png https://www.ohbaby.co.nz/forum/ https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=39829&PID=1364159&title=dating-scans#1364159 Author: MrsEmma
Subject: 39829
Posted: 18 July 2011 at 11:27am

For DS I had m/c'd the month before so my dates were a bit of a guessing game as I hadn't had AF in between but had worked out the dates pretty well and was certain I was due 7th Jan 2010, at my early scan I was put back a week until 14th January and he arrived 20th Jan so the scan was more accurate.

With DD, I was positive of my dates - 100%. Again, the scan changed me from due 9th May to 19th May (10 days out) but I was sceptical of the change as I was so certain and had marked AF in my diary every month. DD arrived on 12th May so 39 weeks exactly and my MW said she looked a week early and I must have had a tummy bug or a flu and ov'd a bit later hence the change in dates.

So, all in all - the scan dates were more acurate both times

Wishing you all the best!]]> Mon, 18 Jul 2011 11:27:25 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=39829&PID=1364159&title=dating-scans#1364159 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=39829&PID=1363831&title=dating-scans#1363831 Author: NewMummyJade
Subject: 39829
Posted: 17 July 2011 at 1:32pm

With DD I went for a dating scan and based on the day we BD'd (it was only once all month so I knew that was the culprit) I would have been 9 weeks. But scan said 7 weeks 3 days, 11 days difference... I was so worried etc until my MW explained to me...

After you BD, sperm survives for 5 days, so if you ovulate before or within those 5 days you can get UTD, then once the egg and sperm connect it can take a day or so for it to get down to the uterus and implant. Hence why LMP and scan dates can be out by 6-7 days.

ANywho, at my 12 week scan they brought me forward 3 days, so it moved to 8 days...

Further along in my pregnancy DD measured 1-2 days bigger than the due date and I have now come to the conclusion that like once they are born, all babies grow at different rates, I think she just started off little and made u for it later on! :)

From now on as long as the baby IS there, has a heartbeat and has grown since the last scan, nothing else worries me!]]> Sun, 17 Jul 2011 13:32:23 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=39829&PID=1363831&title=dating-scans#1363831 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=39829&PID=1362376&title=dating-scans#1362376 Author: kiwisj
Subject: 39829
Posted: 13 July 2011 at 11:44pm

My DS2 was planned and I was pretty sure of when I ovulated. I booked in to see my Ob/gyn at 5 weeks and he did a scan when I thought I was 7w .. he thought I was about 5w+ .. which would have meant getting a BFP before AF was due. Anyways, the OB went with the later date (I think it was around Oct 25, I was expecting it to be Oct 16) till my next scan, 4 weeks later, when bubs was measuring bang on to what I thought he should be. He arrived October 12. I've always heard the earlier the dating scan, the more accurate but they're based on averages so there can/will be outliers too!

Good luck with your pregnancy ]]> Wed, 13 Jul 2011 23:44:47 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=39829&PID=1362376&title=dating-scans#1362376 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=39829&PID=1361970&title=dating-scans#1361970 Author: Birdie
Subject: 39829
Posted: 13 July 2011 at 11:40am

Yeah the scan is more accurate the earlier it is as the baby can curl up and stretch out at 12 weeks making the measurement less accurate ]]> Wed, 13 Jul 2011 11:40:30 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=39829&PID=1361970&title=dating-scans#1361970 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=39829&PID=1361348&title=dating-scans#1361348 Author: buzylizy
Subject: 39829
Posted: 12 July 2011 at 12:36pm

I was pretty sure of my ovulation date and the scans matched up...until later...by 12 weeks he measured 2 weeks ahead consistently and ended up being a big baby. I think the earlier the scan the more accurate the date. Don't wait until the 12 week scan if you want to be sure.
]]> Tue, 12 Jul 2011 12:36:08 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=39829&PID=1361348&title=dating-scans#1361348 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=39829&PID=1360606&title=dating-scans#1360606 Author: KarenMae
Subject: 39829
Posted: 11 July 2011 at 9:08am

Looey - I think that early dating scans can put you a bit 'younger' than you actually are...

According to my ov date - due on the 11th Jan... went for dating scan on what should have been 7 weeks exactly and was put back to 6 weeks 3 days... due 15th Jan.

Had further scan at specialist on what was now 10 weeks 1 day (according to dating scan) and was changed again... to 11 weeks, due 9th Jan. This was more like what I expected... I was a bit worried after the dating scan, but mind put at ease at the later scan...

Wouldn't be surprised if that happens to you also...]]> Mon, 11 Jul 2011 09:08:09 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=39829&PID=1360606&title=dating-scans#1360606 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=39829&PID=1360228&title=dating-scans#1360228 Author: choco69
Subject: 39829
Posted: 10 July 2011 at 9:20am

Looey - if it helps your may have ovulated late due to you living in chch - there is alot of evidence from overseas that earthquakes can severely mess with a woman's normal ovulation cycle - so it may have delayed things - dating scans basically measure the crown/rump length which is pretty standard for all babies, they will be able to further confirm dates at the 13wk scan]]> Sun, 10 Jul 2011 09:20:44 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=39829&PID=1360228&title=dating-scans#1360228 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=39829&PID=1359864&title=dating-scans#1359864 Author: Cinderella
Subject: 39829
Posted: 09 July 2011 at 10:31am

Hey Looey- my oldest DS is now 15. His dad didn't want to know him. He has met him once and he still wants a relationship but I think he has accepted that it won't happen. He has a father in his life who he loves dearly and when he was old enough to understand I simply said his biological father couldn't cope with being a dad and was simply scared.
As a woman we get to choose if we have a baby. The father never has a say. Maybe give them the option of being involved or not. That way what ever happens it will be their choice.

Edited by Cinderella]]> Sat, 09 Jul 2011 10:31:44 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=39829&PID=1359864&title=dating-scans#1359864 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=39829&PID=1359733&title=dating-scans#1359733 Author: myfullhouse
Subject: 39829
Posted: 08 July 2011 at 8:41pm

Looey85 wrote: Anyway... I guess it really doesn't matter at this point, because I've spoken to one of the potential dads and they didn't take it too well. So I guess I really am doing this alone. I think the second will take it worse...

Sorry to hear it didn't go well, although he may just be in shock and come round to the idea given a little time.
Regardless, good luck with your pg]]> Fri, 08 Jul 2011 20:41:19 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=39829&PID=1359733&title=dating-scans#1359733 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=39829&PID=1359663&title=dating-scans#1359663 Author: Looey85
Subject: 39829
Posted: 08 July 2011 at 5:51pm

I think I probably ovulated late... but not that late.

Obviously it's kinda hard for me because I don't know who the father is... so every day counts.

For the scan to be more accurate than my cycle... I would have had to conceive on day 28 of my cycle... right when my period was due. So I think it's at least a week earlier than that.

Anyway... I guess it really doesn't matter at this point, because I've spoken to one of the potential dads and they didn't take it too well. So I guess I really am doing this alone. I think the second will take it worse...]]> Fri, 08 Jul 2011 17:51:11 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=39829&PID=1359663&title=dating-scans#1359663 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=39829&PID=1359652&title=dating-scans#1359652 Author: Kupukupu
Subject: 39829
Posted: 08 July 2011 at 5:13pm

we are all sold the lie of ovulation happening for every woman 2 weeks after last day of period... that is the problem!! LOL
#1 I didn't have any scans and he was 10 days overdue by LMP
#2 I thought I was pregnant so had HCg bloods done several times (neg) then a positive one so we knew a very small window of Ovulation and conception which placed me ovulating the day or so before my period was due. (and she was born 1 day overdue so bang on)
#3 I was wise to this late ovulating thing so had a dating scan as I didn't have a clue where that would place me (unplanned UTD!!).... dating scan wiped 2 weeks off a generously allowed LMP.... and we'll see if this one arrives on time in a couple of months LOL

Anyway- the long and short of it is that some women do ovulate late in their cycle and that is perfectly normal :) ]]> Fri, 08 Jul 2011 17:13:02 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=39829&PID=1359652&title=dating-scans#1359652 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=39829&PID=1359320&title=dating-scans#1359320 Author: choco69
Subject: 39829
Posted: 07 July 2011 at 9:23pm

usually the dating scan has a margin of error of 3-5 days - so normally they are bang on

mine was perfect to dates (and I conceived via IUI so knew the exact date of conception)]]> Thu, 07 Jul 2011 21:23:28 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=39829&PID=1359320&title=dating-scans#1359320 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=39829&PID=1359308&title=dating-scans#1359308 Author: Lillybetts
Subject: 39829
Posted: 07 July 2011 at 9:14pm

Before my dating scan my due date was 18/11/11. That would of made me around 9 weeks along. Then at the scan they said I was only 5 weeks and 6 days along. So changed it to 11/12/11.

I went into labour on the 11th dec, but had her the 12th :)

So mine was quite accurate and I have always had very irregular periods. ]]> Thu, 07 Jul 2011 21:14:01 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=39829&PID=1359308&title=dating-scans#1359308 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=39829&PID=1359152&title=dating-scans#1359152 Author: ChikkyD
Subject: 39829
Posted: 07 July 2011 at 4:52pm

According to my LMP my due date was 12/01/2011

I never went for a dating scan and went for my NT scan which i meant to be done at 14 weeks, but this scan showed that i was only 11 weeks along.. i was so sure that i was right and the scan was wrong!

They changed my due date to 02/02/2011 and my baby arrived on the 06/02/2011... Guess the scan was right after all! ]]> Thu, 07 Jul 2011 16:52:15 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=39829&PID=1359152&title=dating-scans#1359152 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=39829&PID=1359129&title=dating-scans#1359129 Author: Looey85
Subject: 39829
Posted: 07 July 2011 at 4:22pm

Hi all

I just had a dating scan, and I am apparently measuring bang on 6 weeks. I expected almost 8 weeks based on my last period.

Granted that my periods used to be crazy irregular, for the last 18 months, they have regulated and are usually 28-32 days. For the scan to be accurate, I would have had to ovulate on day 26-27 of my cycle... that just doesn't make sense. I know scans aren't accurate to the day, but this seems way off.

I'm interested in hearing other peoples experiences with dating scans and whether you feel they were quite a way off. ]]> Thu, 07 Jul 2011 16:22:51 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=39829&PID=1359129&title=dating-scans#1359129