Measuring 4 days behind at 6 week scan

[TTC1983]

Had my 6 week scan today - measured at 5 weeks 3 days although I was using opk so know when I ovulated.

However she did find a heartbeat which I saw on the screen.

I've done some googling which suggests early scans are not that accurate and can be 5 days out.

Anyone had any experience of this?

Going back in 2 weeks for another scan but they didn't seem worried.

 

[Christina86]

I didn't have a scan that early w/ my first but at 10 weeks I was measuring at 9 weeks.

 

[Jox]

Definitely nothing to worry about esp seen as u got to see a hb as they r usually present from about 6 weeks. U r talking a matter of millimetres in measurements xx

 

[Blessedbaby]

nothing to worry about you could very well be on track just baby was curled up more ...

I had my scan last week and the first measurements read 6w3d and then the second one 6w6d putting me 2 days behind ...

Im of course not going on that as my dr doesn't do dating until 12 weeks ...

 

[Mrs. MB]

My doctor doesn't even date pregnancy until after 12 weeks. You saw all the necessary parts, sac, baby and heart beat. That's all you need. Even after my 15+6 scan the summary said gestational age 16 weeks +/- 8 days. Don't worry about a thing. The millimeters are so hard to measure right! Congrats on a great scan!

 

[TTC1983]

Thank you so much for your responses. I've had 2 mmc in the past and when she did the scan as an abdominal and said it was only 5 weeks 3 days - I freaked out a bit and said it couldn't be right etc as I knew from ovulation I should be 6 weeks but the consultant didn't really say much to ease my fears. Then she did a transvaginal scan and found the heartbeat I was so confused as I didn't even know it was possible to get a heartbeat at 5 weeks 3 days.

 

[laura_2010]

Deffo don't worry there never on measurements early I went 3 times before 10 weeks and then at 12 weeks got put forward 2 days I'm cycles were well off too son was total unsure on dates xxx

 

[TTC1983]

This has stopped me worrying so much. I guess we will see at my next scan if I make up any of the days. I would be very surprised if I really was 5 weeks 3 days given the heartbeat but I guess the heartbeat is all that matters.

 

[Buffyx]

I measured 4 days behind last time, and am measuring 4 days behind this time! I'm sure you're fine

 

[JJay]

I had a very similar experience and all is fine. Here is my post...

https://babyandbump.momtastic.com/p...8087-measuring-behind-scan-today-updated.html

I drove myself mad with worry but I think early scans just aren't that accurate X

 

[TTC1983]

Thank you so much Jayjay - I've just read your thread and it really helps. I think I need to accept that the scan is just not accurate. After all if the baby really was 5 weeks 3 days I very much doubt I would have seen the heartbeat. Fingers crossed for my next scan in 2 weeks - the wait will probably kill me but I will try not to freak out too much!

 

[ttc bubby no2]

You could have ovulated a little later as it is not always the day after an OPK+. Unless you charted temps you can't pinpoint it.

Also scans that early are a bit inaccurate. My scan at 7wks was measuring 6+3 at one point and 6+5 at another. I think I also ovulated a day later than I thought, even though did chart my temps I think they were slightly out this time.

 

[JJay]

Good luck TTC - I know how horrible the wait is. I just couldn't understand how the early scan dates would have meant a BFP at 2dpo which is impossible and I was so stressed. The heartbeat is great news and I'm sure your next scan will show a baby shaped blob measuring on track. Take care X

 

[gingajewel]

I thought I was eight weeks and an early scan showed I was 7+1, so six days behind. When i had my twelve week scan they put me forward four days, the difference between a five week and six week foetus is literally millimetres so it could well be off a little bit.

 

[TTC1983]

Just wanted to post an update! I had another scan on Monday which to my calculations should have been 8 weeks but by the last scan would have been 7 weeks 3 days.
I had a lovely Dr do the sonograph who told me straight away baby was fine and measured 8 weeks 1 day! So in 2 weeks baby had grown 2 weeks and 5 days lol!

Thank you for all the reassurance - on to a happy and healthy 9 months!

 

[Blessedbaby]

that's great news ... enjoy your pregnancy

 

[Ella86]

So happy to hear this!

 

[Jox]

Great news, the difference of a matter of days is nothing so early on x

 

[Isme]

Wonderful news! Congratulations.

 

[JJay]

Hurray! Lovely news X