Ultrasounds at 8 weeks taken 4 days apart are measuring the same, should I be worried or

[Monroe]

Has anyone had any experience of this? I am currently approx 9 weeks pregnant following 2 missed miscarriages. I have been sick with worry since finding out and convinced the same thing could happen again. We paid for a private scan when we estimated I would be 7 + 5 days according to my LMP. We were thrilled to see a little heartbeat and the sonogropher measured the fetus at 17mm and said that the gestational age was 8 + 2 days. 4 days later I had some slight bleeding so went straight to the hospital where I was given another scan. We were told the measurements were the same, 17mm and 8 + 2 days. Is it possible that this could be down to human error or does it mean the fetus has stopped growing and I may miscarry again? Has anyone been through anything similar? I would love to hear anybody's thoughts as I am feeling very vulneralbe and worried at this time

Hi - firstly congrats on your pregnancy!

Secondly, from what I have been told when I go for scans is that the earlier viability scans can be misleading when it comes to dating the baby. Different sonographers can pick up slightly different readings...so I really wouldnt worry.

When I went to my viability scan, I was put 5 days back from where I thought I was. When I went back at 12 weeks, I was put forward again by 5 days! 12 week scans are far more accurate...the purpose of the viability scan from when I have been is to try to find a heartbeat, ascertain that it sounds strong and healthy and that all is well with the surrounding tissues.

Try to relax and congrats once again!

Early scans are notoriously bad at measurements. If the heartbeat is strong this is a good sign at this stage. Measurements can be easily out by +or- 3 days at this stage, if not more, that is a 6 day error margin ..... so definitely nothing to worry about at this stage. But I can understand having recurrent missed miscarriages before you are naturally going to be worried. Hopefully they will rescan you in a couple of weeks to reassure you. Hope it all goes well.

A HB at 8 weeks pregnant means your chance of MC is now less than 2% which is much better than 22% at 6weeks scan with HB. So odds are very much in your favour.

www.miscarriageassociation.org.uk/ma2006/information/ultrasound.htm scroll down to section on scans.

Thank you very much for your responses. They do reassure me especially the information on the miscarriage association website, but with my history I probably won't start relaxing until the contractions start! I have another scan booked for Wednesday when I should be just over 9 weeks so fingers crossed we get some reassuring news then

Hi i know this is a very old post but i have the exact same situation and wondering how you got on with the pregnancy x