Just wondering some things for those who have experience with having cervical lengths measured.
So, since DD was born at 26 weeks, we're checking cervical lengths every 2 weeks this pregnancy. We stared at 18 weeks. At 18 & 20 weeks, my cervix was 4.1.-4.4 cm which we were very happy with I wasn't scheduled to go in until next week at 22 weeks, but I went in today because I've been freaking out & driving myself crazy here at home while on bedrest (due to placenta placement). I keep thinking I'm contracting, but not 100% sure, have had a backache & achy in my perineum area.
So I went in, no contractions after 30 minutes on the monitor Did another cervical length & I'm not sure if the U/S tech took more than one measurement like they usually do, but she said I was at 3.9 cm. She also took a measurement as I was bearing down & that was 3.5 cm.
My usual OB was out of the office & the nurse said since everything looked OK, I didn't need to see anyone else, but did get a phone call from one of the other OB's to follow up after I got home. She said they recorded my cervical length at 3.5 cm & they were still happy with that.
I'm just wondering how much others have seen in variation from check to check. I was wishing to still be > 4 cm at this point so I'm a bit disappointed, but wondering if it's normal to have variation like this - maybe I'll be >4 at the check next week?
Do you think it's normal to have the cervix shorten like it did for me when bearing down - I think of every time I cough or have a BM that my cervix is shortening
I will have another check next week at 22 weeks & will get to see my usual OB so hopefully will get some more answers then.
The only reference point I have is from Keepemcookin.com:
* At 16 to 20 weeks, normal cervical length is 4.0 to 4.5 cm
* At 24 to 28 weeks, normal cervical length is 3.5 to 4.0 cm
* At 32 to 36 weeks, normal cervical length is 3.0 to 3.5 cm