Cervical length scan

[Lg20220926]

Had 20 week scan today. All looked good but needed cervical length scan due to previous caeserean at full dilation. Measured at 29mm (did spot a measurementof 35mm prior to this but this is the one written on my notes). Sonograher seemed happy with this. I have obviously googled and it looks like I should be nearer 40mm at this point. Any experiences of this ?? Xx

I had one last week at 19 weeks for same reason previous full dilation c section. My measurement was 28mm and they were happy with that, mine says over 25mm is what they check for. I do have another one in a couple of weeks to check any changes.

Thanks for your reply. Ah okay thats good to know. I don't have another one scheduled but do have a pre term birth clinic appointment next week which I will mention it at xx