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Pregnancy

Talk about every stage of pregnancy, from early symptoms to preparing for birth.

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Original poster

Dates changed at scan but i disagree?

28 replies

daisydalrymple · 15/05/2014 13:50

Delighted to see heartbeat at scan! But scan dates have put me 8 days ahead of my dates, which are sadly very accurate as DTD very rare in our house. Scan dates would mean i conceived 5 days before we DTD. And that i ovulated around day 6 of my cycle!

Already referred for consultant assessment (41), so every day counts as i will no doubt face the pressure of early induction later on. Both dcs were overdue 11&5 days. Are midwide and consultant likely to listen to me about my dates? Sonographer said dates were accurate to 5 days either side.

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morethanpotatoprints · 15/05/2014 13:56

I don't think it matters OP tbh.
They argued with the dates of all 3 of our dc and they all were early for which ever dates either they or we had.
Your dc will come when ready anyway.

Original poster

daisydalrymple · 15/05/2014 14:01

Thanks, it's just my concern is that being older, they will want to induce me early, and scan dates have already put me a week ahead where i think i am.

OP posts:

AnnoyedByAlfieBear · 15/05/2014 14:29

My scan put our date forward a week, making conception 4 days before we dtd. I mentioned it to my mw and she laughed it off saying "the scan never lies".

Fwiw, you are fully within your rights to refuse an induction.

eurochick · 15/05/2014 14:34

I don't know why HCPs are so insistent on scan dates against all other evidence. They have kept to my dates as we know exactly when conception happened (IVF) but I have been measuring small all along, so I would have been put back a few days by the scan. So they are not foolproof! I have heard of many other IVFers in similar circs.

ChicaMomma · 15/05/2014 14:52

I am having the same problem- although in the opposite direction to you which works out well from the POV of induction, so i'm saying nothing.. i did insist they were 4 days out but they were having none of it, so i've given up.. I can see why you're concerned though so in your case i'd be more insistent of it- and dont forget, provided your placental function is working fine later on, you can refuse induction anyway. Things might change, you enver know what might happen- for me personally it looks like i'll get a section, 35 weeks and no sign of moving from breech position.. so for now, just concentrate on having a H&H pregnancy! congrats.

Original poster

daisydalrymple · 15/05/2014 14:57

Thank you all for replying! I will make a point of bringing it up with both midwife and consultant at my next appointments and asking them both to document it. Given i've been overdue twice it's likely i will again. I won't want to take any risks but don't want to battle it out later if all is well.
Thanks x

OP posts:

Abby1976 · 15/05/2014 14:57

Hi Daisy

I've been there! My first two were +12 days and +6 days respectively. Interestingly both were +8 days according to my dates, which I knew were right.

Baby #3 came along and they moved my due date 8 days forwards. This may not be a problem for most people but for me, I knew I carried for 41w+1d in every pregnancy so when moving my dates that made +16 days according to their dates.

On this basis I made it clear from the outset I would be refusing induction (done at +12 days here). It was very stressful to do this. I cannot reiterate enough how much pressure was put on me not to wait and to be induced. I had to have daily scans and at each scan would be 'talked to' by a midwife or two and a doctor to try and get me admitted for induction. They scared me. They made me frightened that I was potentially doing damage to my baby. When all along I was just trusting my instincts and I knew I was right.

In the end I allowed waters to break and labour to start naturally, without induction. This happened at +15 days and my son was born safely +16days according to their dates. Which was spot-on +8 days according to my dates - exactly when I said it would happen.

I would do it again, as long as you trust your dates. But be warned, you need a will of steel to be able to cope with the pressure and guilt-trips they try on you!

(Currently pregnant with #4 but this time they have only moved my date by 2 days)

HappyAsASandboy · 15/05/2014 14:58

I conceived my twins a week before we had sex, according to the hospital.

Whenever I tried to explain that this wasn't possible, I was told that

a) sperm can survive 5 days in the female body, so the date of intercourse is irrelevant

err, yes. But the sperm can't fertilise an egg 7 days before they're in your body, right?!

b) that 'conception' is measure from when you ovulate, not from when the egg is fertilised

err, what?! But even so, if I ovulated 7 days before we had sex then there's no way that egg was still viable when we had sex!

c) that scan dates never lie.

I beg to differ. I did not conceive my twins 7 days before I had sex. It just didn't happen.

So, I have lots of sympathy! But I don't think you can convince them. But you can refuse an induction until you are ready to have one.

Good luck!

ChicaMomma · 15/05/2014 15:13

Major lol at this HappyAs:
err, yes. But the sperm can't fertilise an egg 7 days before they're in your body, right?!

Scan dates never lie? like hell they dont, what drugs are they on??

medics eh, who needs 'em.

Christelle2207 · 15/05/2014 15:13

I had this. I had clomid and scans to confirm ovulation and know pretty much to the day (+/-24h) when I conceived. Early private scan at 7 weeks agreed exactly with me. Nhs scan at 13 weeks put me 6 days ahead which was impossible. I ended up having the (very long!) baby on my original (correct) due date which of course I could have done anyway but I was worried about being induced early as officially I was 40+6 when he came. I was going to refuse induction on the grounds of not being "that" late but actually had it come to it probably wouldn't have done as I was so fed up.

Thurlow · 15/05/2014 15:51

Most of the time I don't think it matters too much. I've had two unexpected pregnancies, one of which was DD, and it turned out after the second that I fall pregnant on about day 1 of my cycle, which meant that DD was probably a week 'older' than the scans made her.

However in your case, I would be sticking to your guns if induction comes on the card and say that you are 100% sure as any other day is an immaculate conception.

Cuppachaplz · 15/05/2014 17:52

Hi there,
I have had this the other way.
The scan put my DS due 2w after my dates, and this new date meant that I had had a BFP 5 days before conception!!!
When DS rocked up 18d OD by my dates, the MW announced, 'This is a very post-mature baby'
but of course, the scan never lies...

You can refuse induction, and MW very used to people doing this.
I have also found that some MW very sensible about listening to you rather than scans BTW, presumably stories like these are not all that uncommon!

Tweetinat · 15/05/2014 18:00

Another one here with same problem. I too am dated 5 days early by scan but we DTD only once and I too was using ov sticks so I def know when I conceived. I'm not too concerned for induction as I'll stick to my guns, but I (stupidly) booked flights which I need a oft to fly letter for and the MWs insist on using scan dates which make me too far along to travel...

MultipleMama · 15/05/2014 18:03

All I know is that when you concieve you are considered 2 weeks pregnant (or something nutty like that) because they always go by LMP dates. I have no idea if this is relevant or explains anything haha...

ProtegeMoi · 15/05/2014 18:22

I had this as well, they put my dates three weeks ahead. Thing is I am in a same sex relationship and conceived using a sperm donor so I knew the EXACT date. They still said they were right.

ScrambledEggAndToast · 15/05/2014 18:28

I had my dates changed by 2 weeks yet I knew exactly when we DTD as my ex husband was in the Navy and away a lot. They put be back from 16 weeks to 14, then he was two weeks late weighing 10lb 4oz. I'm convinced I was pregnant for about 44 weeks

HauntedNoddyCar · 15/05/2014 18:35

We had the same. According to the scans DH's sperm managed to cross an ocean, find me at my parents' house and get me pregnant while I was having my period.

Now I'm no doctor but I do think that is unlikely...

PenguinsHatchedAnEgg · 15/05/2014 18:53

Loving some of these stories, especially the ocean-going sperm and the miraculous same sex conception!

I had this too and had a recent thread about refusing induction. Mine would have been 'just' for being post dates rather than any problem or risk factor.

I flagged at my scan (and repeatedly throughout!) that the date change was wrong - we hadn't had sex for nearly two weeks on the date they said I conceived. There was no budging anyone officially. However my MW took on board what I said. I warned we'd get to 'overdue' because my previous children had been and we did. Officially I got to +13, which I think was more like +8 (almost identical to my previous births).

I was planning a homebirth and reached the point where I was about to be asked to attend for monitoring. BUT both my MW and the supervisor of midwives were on board with the idea that I would go ahead with a 'homebirth against medical advice' and seemed pretty comfortable. If I had been planning to use the MLU their hands would have been more tied unfortunately. I had no pressure at all placed on me, though of course I don't know what would have happened at the monitoring.

Original poster

daisydalrymple · 16/05/2014 09:19

Wow can't believe all these stories! Thanks my midwife this time around is older, so hopefully she'll listen xx

OP posts:

lottie123456 · 16/05/2014 17:38

dates are dates your baby will come when he or she is ready haha

alita7 · 16/05/2014 17:45

I on the other hand am exactly right for when the sticks said I ovulated, to the day :P It's odd how different we can all be!

PenguinsHatchedAnEgg · 16/05/2014 18:45

That is true Lottie, but you are maybe missing the issue a wee bit? If, like the OP and like me, your change of dates means that you are likely to be placed under pressure to have an induction you don't believe is medically indicated, it stops being a question of 'coming when they are ready' and can make the whole end of the pregnancy very stressful. I was soooo lucky to have a supportive MW.

pommedeterre · 16/05/2014 19:57

I am induced at 38 weeks.

With dd2 I had also been moved a week ahead.

Consultant did listen to me and induced at 39 weeks by dates instead. They won't ignore a well stated case and will have seen date confusion before.

Good luck!

sallysparrow157 · 16/05/2014 20:05

Dates are from last period, not actual date of conception, may seem daft but that's just how it works - the duration of pregancy is 40 weeks from the start of the last period (38 weeks from conception) rather than 40 weeks from the sperm actually meeting the egg, this is used because women have different cycle lengths and also the day your last period started is a definite, whereas the day that you had the shag that made the baby is not definite, nor is the day the sperm and egg met (which may be several days after the day sex took place so even if you only had sex once that cycle you still don't know exactly what day your baby was conceived)

pommedeterre · 16/05/2014 20:08

But if you know when you ovulate then the window is narrowed to max 2 days? So then you do know that being moved a whole week is not right.

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