My cervix was measured to be 0.8cm (8mm) at 19 weeks. Since then I have had a 15mm then 8mm and the last one was 20mm (2cm) - I'm now almost 23 weeks. From my experience there is some variation in the measurement depending on the sonographer and whether or not they are pushing in on the cervix or not. One sonographer demonstrated how she could get different measurements by moviong the probe around. So I think while you are still within the safe threshold (>2.5cm) you can rest easy. It is good that they are keeping an eye on it though.
From my understanding, in a 'normal' pregnancy the cervix starts to shorten sometime after 30 weeks at an average rate of between 0.5-1cm per week. However, everyone is so different and what may mean early labour for one is completely normal for another.
I didn't get a stitch because I am already too short and the risk of other complications is too great. My ob started me on progesterone pessaries last week befor I got the 20mm measurement, so that might be something to talk to your ob about if it does start to shorten below 2.5cm. Whether they contributed to the large jump in my cervix length or not is anyones guess. Maybe it is just the bed rest ????? According to my ob, they don't really know. But the randomised control trials for the progesterone treatment show a significant decrease in delivering before 34 weeks in women with shortened cervix. It's my best shot.
Reply With Quote
Bookmarks