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7 week dating scan


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#1 muffiny123

Posted 13 September 2019 - 01:08 PM

Hi all,

My doctor has asked me to have a dating scan around 7 weeks as I had a week of spotting around implantation/my expected period date. Has anyone had a scan this early?

Will another scan be offered around 12 weeks? I have a number of friends who miscarried between 6-12 weeks, so I would prefer to check the baby before announcing to friends. I will be doing the percept NIPT- do you usually get a scan before this?

Thanks!

Edited by muffiny123, 13 September 2019 - 01:11 PM.


#2 Apple14

Posted 13 September 2019 - 01:15 PM

I always had a dating scan around 7 weeks and then another at 12.


#3 mandala

Posted 13 September 2019 - 01:22 PM

I've had scans at 7 weeks, 9 weeks and 12 weeks - 7 weeks with threatened miscarriage, 9 weeks at first appt with OB (because she knew I was desperate for a look!). In all three pregnancies the 12 week scan was a given.

The 7 week scan should be able to see the heartbeat, and the risk of miscarriage is lower once you have seen it. It's something like 10% of pregnancies where you have seen a heartbeat will miscarry - and of course, you can sadly miscarry even after the 'safe' three month mark. My OB said that the majority of the miscarriages between 6-12 weeks actually never had a heartbeat, but just took time to miscarry.

Having said that, I miscarried at 10.5 weeks after seeing a healthy heartbeat at 9 weeks, so as with all things in pregnancy, there are no guarantees.

Congratulations on your pregnancy and I hope all goes smoothly for you.

#4 born.a.girl

Posted 13 September 2019 - 01:38 PM

I had a dating scan that early as I was planning CVS and they need to know for the timing.

#5 blackcat20

Posted 13 September 2019 - 02:10 PM

I had one around the 6-7 week mark as I’d had a bit of bleeding, including what I’d thought was my period. Not much to see but there was a very good heart beat.

#6 ~Bob~

Posted 13 September 2019 - 04:28 PM

You will have a scan before the NIPT. They just do a quick check to make sure everything looks ok before they do the test.

If you're doing the NT scan as well, they would do another scan then, although IMO this one is redundant if you're doing the NIPT.

#7 Lou-bags

Posted 13 September 2019 - 05:00 PM

View Post~Bob~, on 13 September 2019 - 04:28 PM, said:

You will have a scan before the NIPT. They just do a quick check to make sure everything looks ok before they do the test.

If you're doing the NT scan as well, they would do another scan then, although IMO this one is redundant if you're doing the NIPT.

It’s really not (redundant, that is). The 12 week scan can pick things up that the NIPT cannot (it tests only for a handful of chromosomal anomalies). And I’m not sure (and I doubt) that the technicians doing a quick scan at the time of an NIPT would be looking and/or trained to pick these things up. Are the NIPT related scans reviewed by a specialist like the 12 week scans are?

Personally I would not forgo the 12 week scan.

OP, I had dating scans at 7weeks with both pregnancies due to irregular periods and my OB wanting to confirm EDD. Most of my friends have had dating scans at around this point for peace of mind, or due to questionable dates like me. It’s  become rather routine.

Congratulations on your pregnancy and best of luck with it!

#8 Disydo2018

Posted 13 September 2019 - 06:15 PM

You’ll always have a 12 week scan to check for structural issues whether you’re having the NIPT or not. I had the NIPT and a scan at 7 and 12 weeks.

#9 Grassyrat

Posted 13 September 2019 - 07:05 PM

I have had a scan at 5,6,8,12 and 20 weeks thus far. I've had a previous ectopic pregnancy so the first one was just to see if a yolk sac could be seen in the uterus.

It's a bit unnerving to be monitored so closely early on but by 7 weeks you'll be able to detect a fetal heart beat which is a nice positive.

Good luck and I hope it's an uneventful 9 months for you x

#10 Lallalla

Posted 13 September 2019 - 07:10 PM

View PostDisydo2018, on 13 September 2019 - 06:15 PM, said:

You’ll always have a 12 week scan to check for structural issues whether you’re having the NIPT or not. I had the NIPT and a scan at 7 and 12 weeks.

Yes this was always the case, even if you opted out of the nuchal translucency/blood test in the days before NIPT you still had a scan at 12 weeks to check for other abnormalities.
A midwife once told me it is also the most accurate for dating of all the scans you ever have while pregnant because it is the one earlyish scan that everyone has so they have more data for those measurements than any other. Or something like that

#11 afterlaughter

Posted 13 September 2019 - 08:52 PM

View PostDisydo2018, on 13 September 2019 - 06:15 PM, said:

You’ll always have a 12 week scan to check for structural issues whether you’re having the NIPT or not. I had the NIPT and a scan at 7 and 12 weeks.

I’ve never had a 12 week scan. Only a dating scan at 9 weeks and a 20 week scan. My sister has also only had the two scans for each of her 4 pregnancies. So definitely not compulsory to have a 12 week scan.

#12 loulou1985

Posted 13 September 2019 - 09:00 PM

No scan is compulsory. The advantage of the 12 week scan is that you can pick up any major abnormalities early. Things like anencephaly for example. The dating scan around 7 weeks is done purely for dating and viability.

#13 SeaPrincess

Posted 13 September 2019 - 10:15 PM

I had dating scans at around 7 weeks in 2 of my pregnancies. The first time, it was because I had long cycles. I was charting, so I knew I had ovulated on CD 26. Dating put me within a couple of days vs LMP which was out by 2 weeks. The second time, it was because I was BFing and pregnant with no clue.

The only issue I had was the dating scan and 12 week scan have the same Medicare code, so i paid full price for the second one. I didn’t have the 12 week scan with my third baby - it was too hard to organise and involved me flying between Christmas and new year and I just CBF.

#14 ~Bob~

Posted 13 September 2019 - 10:53 PM

View PostLou-bags, on 13 September 2019 - 05:00 PM, said:

It’s really not (redundant, that is).

Sorry, I should have elaborated. I was talking about the tests. IMO the NT scan is the redundant scan if you are doing NIPT. But yes, the 12 week ultrasound is still absolutely invaluable. As you say, it can detect foetal abnormalities.

#15 First@35

Posted 14 September 2019 - 07:51 AM

I had a dating scan at 9 weeks (didn't know I was preg until 8 weeks) then another at 13 weeks.
Unfortunately we had lost the baby at 12 weeks which I hadn't realised.




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